15 Female Mathematicians Whose Accomplishments Add Up

Katherine Johnson at NASA in 1966
Katherine Johnson at NASA in 1966
NASA, Wikimedia Commons // Public Domain

In many periods of history, women have been discouraged from applying their minds to mathematics—but a few persevered. The world-altering contributions of these 15 notable female mathematicians include making hospitals safer, laying the groundwork for the computer, and advancing space flight.

1. HYPATIA

Hypatia (c.355–415) was the first woman known to have taught mathematics. Her father Theon was a famous mathematician in Alexandria who wrote commentaries on Euclid’s Elements and works by Ptolemy. Theon taught his daughter math and astronomy, then sent her to Athens to study the teachings of Plato and Aristotle. Father and daughter collaborated on several commentaries, but Hypatia also wrote commentaries of her own and lectured on math, astronomy, and philosophy. Sadly, she died at the hands of a mob of Christian zealots.

2. EMILIE DU CHATELET

Emilie Chatelet portrait by Latour
Maurice Quentin de La Tour, Wikipedia // Public Domain

Emilie Du Chatelet (1706–1749) was born in Paris in a home that entertained several scientists and mathematicians. Although her mother thought her interest in math was unladylike, her father was supportive. Chatalet initially employed her math skills to gamble, which financed the purchase of math books and lab equipment.

In 1725 she married an army officer, the Marquis Florent-Claude du Chatalet, and the couple eventually had three children. Her husband traveled frequently, an arrangement that provided ample time for her to study mathematics and write scientific articles (it also apparently gave her time to have an affair with Voltaire). From 1745 until her death, Chatalet worked on a translation of Isaac Newton’s Principia. She added her own commentaries, including valuable clarification of the principles in the original work.

3. SOPHIE GERMAIN

Sophie Germain (1776–1831) was only 13 when she developed an interest in mathematics, one that could be blamed on the French Revolution. Since the fighting raged around her home, Germain could not explore the streets of Paris—instead she explored her father’s library, teaching herself Latin and Greek and reading respected mathematical works. Germain’s family also tried to discourage her academic leanings. Not wanting her to study at night, they denied her a fire in her room, but she lit candles and read anyway, bundled in blankets.

Since women’s educational opportunities were limited, Germain studied secretly at the Ecole Polytechnique, using the name of a previously enrolled male student. That worked until the teachers noticed the dramatic improvement in the student’s math skills.

Although Germain never worked as a mathematician, she studied independently and wrote about the subject. She is best known for her work on Fermat’s Last Theorem, considered at the time to be one of the most challenging mathematical puzzles. A 17th century mathematician named Pierre de Fermat claimed he could prove that the equation x^n + y^n = z^n had no integer solution when n was greater than 2, but his proof was never written down. Germain proposed a new way of looking at the problem.

Germain also became the first woman to win a prize from the Paris Academy of Sciences, for writing about elasticity theory. Today that prize is known as the Sophie Germain Prize.

4. MARY SOMERVILLE

A portrait of Mary Somerville
Thomas Phillips, Wikipedia // Public Domain

Mary Somerville (1780–1872) was born in Scotland, and was not particularly interested in academics as a child—she only attended school for a year. However, when she encountered an algebra symbol in a puzzle at age 16, she became fascinated with math and began studying it on her own. Her parents tried to discourage her, worried that her intellectual preoccupations might drive her insane. (At the time, a popular theory held that difficult study could damage a woman’s mental health.) But Somerville continued to study, teaching herself Latin so she could read earlier versions of works by Euclid.

She also corresponded with William Wallace, a professor of mathematics at Edinburgh University, and solved mathematical problems posed in contests, winning a silver prize in 1811.

Somerville’s first husband did not encourage her interests, but when he died, she remarried. Her second husband, Dr. William Somerville, an inspector of the Army Medical Board, was proud of her work in mathematics and astronomy. For her work translating a book titled Celestial Mechanics and adding commentary, she was named an honorary member of the Royal Astronomical Society.

Physicist Sir David Brewster called her “certainly the most extraordinary woman in Europe—a mathematician of the very first rank with all the gentleness of a woman.” When John Stuart Mill petitioned the British government for women’s votes, he filed his petition with Somerville’s signature first. She was proof that women were men’s intellectual equals.

5. ADA LOVELACE

A portrait of Augusta Ada, Countess Lovelace
Hulton Archive/Getty Images

The next time you download some electronica, you may want to remember Augusta Ada King-Noel, Countess of Lovelace (1815–1852). Lovelace was born during the brief marriage of poet George, Lord Byron and Anne Milbanke, Lady Wentworth. Her mother did not want her to be a poet like her father and encouraged her interest in mathematics and music. As a teenager, Ada began to correspond with Charles Babbage, a professor at Cambridge. At the time, Babbage was working on his ideas for a calculating machine called the Analytical Engine, now considered a precursor to the computer. Babbage was solely focused on the calculating aspects, but Lovelace supplied notes that helped envision other possibilities, including the idea of computer-generated music.

Lovelace also translated an article about the Analytic Engine by French mathematician Louis Menebrea. Her notes include an algorithm showing how to calculate a sequence of numbers, which forms the basis for the design of the modern computer. It was the first algorithm created expressly for a machine to perform.

Lovelace was a countess after her marriage, but she preferred to describe herself as an analyst and a metaphysician. Babbage called her “the enchantress of numbers”—but she might also be called the world’s first computer programmer.

6. FLORENCE NIGHTINGALE

A black-and-white photograph of Florence Nightingale
London Stereoscopic Company/Getty Images

Florence Nightingale (1820–1910) is best known as a nurse and social reformer, but a lesser-known contribution of hers continues to save lives. In her efforts to improve the survival rates of hospital patients, Nightingale became a statistician.

When the “lady with the lamp” returned from service during the Crimean War, she expressed sadness about how many soldiers had become sick and died while lying in the hospital. “Oh my poor men, who endured so patiently,” she wrote to a friend. “I feel I have been a bad mother to you to come home and leave you lying in your Crimean graves.”

As part of her plan to reform hospital care, Nightingale began gathering statistics. The figures she gathered indicated that a lack of sanitation was the primary reason for the high mortality rate. Efforts were instituted to make hospitals cleaner and thus safer.

Not only did Nightingale’s discovery save lives and change hospital protocol forever, but she also designed charts that were easy on the Queen’s eyes. Statistics had been presented with graphics only rarely before, and Nightingale’s work helped pioneer the field of applied statistics. She is particularly known for inventing a new kind of graph known as a coxcomb, which was a variation on a pie chart. She said that the graph was designed “to affect thro’ the Eyes what we fail to convey to the public through their word-proof ears.”

7. EMMY NOETHER

Portrait of Emmy Noether
Wikipedia // Public Domain

Like Hypatia, Emmy Noether (1882–1935) had a well-known mathematician for a dad. Her father, Max Noether, was a German math professor, but becoming a math teacher would be a longer process for her. After being certified to teach English and French, she also wanted a degree in mathematics, but she had to wait—the University of Erlangen in Bavaria did not let women officially enroll until 1904. Noether eventually received her doctorate in mathematics, but because her university had a policy against hiring female professors, she instead helped her father in his work at the Mathematics Institute in Erlangen (without being paid), researching and writing papers on the side.

In 1918 she proved two theorems, one of which is now known as "Noether's Theorem." After that she researched ring theory and number theory, both of which would later prove useful for physicists. Finally, in 1922, she became an associate professor and received a small stipend.

But her teaching career in Germany was short-lived. Because of growing anti-Semitism, she and other Jewish mathematicians had to flee the country in 1933. She moved to the United States, and taught at Bryn Mawr College until her death.

After her death in 1935, Albert Einstein described Noether in a letter to The New York Times with these words: "In the judgment of the most competent living mathematicians, Fraulein Noether was the most significant creative mathematical genius thus far produced since the higher education of women began."

8. MARY CARTWRIGHT

Mary Cartwright (1900–1998) achieved a few notable firsts: She was the first woman to receive the Sylvester Medal for mathematical research and the first to serve as president of the London Mathematical Society (1961–62).

In 1919 she was one of only five women studying mathematics at Oxford University. When she did not score well on her tests, she briefly considered giving up math. Fortunately, she chose to persevere, and went on to lecture at Cambridge University. She later earned a doctorate in philosophy and had her thesis published in the Quarterly Journal of Mathematics. After being awarded a research fellowship, she went on to publish more than 100 papers. One of her theorems, known as Cartwright's Theorem, is still frequently applied in signal processing. She also contributed to the study of chaos theory. In 1969 Queen Elizabeth II honored Cartwright’s accomplishments by proclaiming her Dame Mary Cartwright.

9. DOROTHY JOHNSON VAUGHAN


Dorothy Vaughan (left) at NACA
Beverly Golemba, Wikipedia // Public Domain

The excitement of space travel was made possible by years of painstaking work conducted by “human computers”—specifically, a group of mathematically proficient women who calculated a variety of scientific and mathematical data at the National Advisory Committee for Aeronautics (NACA), which later became NASA. Dorothy Johnson Vaughan (1910–2008) was one of them, and her contributions are featured alongside those of several other African-American female mathematicians at NACA in the 2016 film Hidden Figures.

After working as a math teacher, Vaughan took a job at NACA in 1943. In 1949, she was promoted to lead the division’s segregated work group West Area Computers, which was entirely composed of African-American female mathematicians. She became an expert in coding languages such as FORTRAN (now a popular language for high-performance computing). She described working in space research as being on “the cutting edge of something very exciting.”

10. MARJORIE LEE BROWNE

Mathematician and educator Marjorie Lee Browne (1914–1979) was one of the first African-American women to acquire a Ph.D. in math. Becoming a respected educator meant overcoming personal tragedy (the death of her mother at a young age), as well as race and gender discrimination. Fortunately, her mathematically gifted father and teacher stepmother encouraged her educational interests. She attended a private school, graduated Howard University cum laude and earned her doctorate at the University of Michigan.

Browne taught math at North Carolina College (now North Carolina Central University), where she was named chair of the math department in 1951. She helped her school acquire grants, including a 1960 grant to set up a computer center, one of the first of its kind. Thanks in part to her work, the school became home to a National Science Foundation Institute for secondary education in mathematics. Browne also received the first W.W. Rankin Memorial Award for Excellence in Mathematics Education.

11. JULIA ROBINSON

Julia Robinson’s (1919–1985) early education was interrupted more than once by illness. One bout of rheumatic fever required a year of recuperation and would continue to affect her health. When Robinson returned to school in the ninth grade, she developed an interest in math. She graduated high school with honors in math and science classes, then eventually attended Berkeley, where she married an assistant professor named Raphael Robinson.

After being told she could not have children due to the residual effects of the rheumatic fever, she renewed her devotion to math, receiving her doctorate in 1948. That year she began to work on the mathematical problem known as David Hilbert’s Tenth Problem, which occupied her for decades. Her work toward solving the problem with an international team of other mathematicians is the subject of a one-hour documentary titled “Julia Robinson and Hilbert’s Tenth Problem.” In 1975 Robinson was the first woman mathematician to be elected to the National Academy of Sciences. She also became the first woman president of the American Mathematical Society.

12. KATHERINE JOHNSON

Katherine Johnson receiving the Presidential Medal of Freedom in 2015
NASA, Wikimedia // Public Domain

When Katherine Johnson (born 1918) wanted to study math, she faced a big obstacle. White Sulphur Springs, West Virginia, where she lived, did not offer schooling for black students past eighth grade. So, her father drove his family 120 miles so she could attend a high school in another town, leaving Katherine and her mother there while he continued to work in White Sulphur Springs. The math prodigy graduated by the age of 14. When she attended West Virginia State College, several professors recognized her unusual ability and mentored her. She graduated summa cum laude at the age of 18, with plans to teach. After doing so for a little while, she went to work for NACA as one of the mathematicians known as “computers who wore skirts.” Her knowledge of analytic geometry resulted in her assignment to the all-male flight research team, where she helped calculate the trajectory of Alan Shepherd’s first trip into space. She was so good at her job that she stayed on the research team after Shepherd’s trip, working at Langley Research Center from 1953 to 1986.

“I went to work every day for 33 years happy,” she said. “Never did I get up and say I don’t want to go to work.” She received the Presidential Medal of Freedom in 2015, and her work is also celebrated in Hidden Figures.

13. MARY JACKSON

Photograph of Mary Winston Jackson
Wikipedia, NASA // Public Domain

Mary Jackson (1921–2005) grew up in Hampton, Virginia, graduating with honors from high school and receiving a bachelor’s degree from Hampton Institute in mathematics and physical science. She was hired as a research mathematician at the NACA campus in Langley, and was eventually promoted to aerospace engineer, specializing in aerodynamics.

“After five years of working in that department and taking additional courses at the Hampton Center of the University of Virginia I was invited to become an engineer-in-training through a special program and I’ve been an aerospace engineer ever since,” she said.

She later worked with flight engineers at NASA and was repeatedly promoted. After three decades, Jackson achieved the highest level of engineer, but then chose to focus on efforts to help women and minorities advance their careers. She is also featured in Hidden Figures.

14. CHRISTINE DARDEN

Color photograph of Dr. Christine Darden
NASA, Wikipedia // Public Domain

Dr. Christine Darden (born 1942) is a mathematician, data analyst, and aeronautical engineer who spent her 25-year career at NASA researching sonic booms—the sound associated with the shock wave of an object traveling through air faster than the speed of sound. After a brief stint teaching and researching aerosol physics, she landed at the Langley Research Center. There she performed calculations for engineers, eventually writing computer programs to automate the process. She became one of the first female aerospace engineers at Langley, writing a computer program to measure sonic boom. After earning a doctorate in mechanical engineering, she became the leader of NASA's Sonic Boom Group. Darden conducted research on air traffic management, as well as other aeronautics programs, and has authored more than 50 publications. She is also featured in Hidden Figures.

15. MARYAM MIRZAKHANI

As a girl, Maryam Mirzakhani (1977-2017) was not very interested in math, and dreamt of being a writer. “I never thought I would pursue mathematics until my last year in high school,” Mirzakhani told The Guardian.

The choice turned out to be a wise one: In 2014 she became the first woman and the first Iranian honored with the prestigious Fields Medal, awarded for her work on hyperbolic geometry—a non-Euclidean geometry used to explore concepts of space and time.

Mirzakhani taught math at Stanford University. Curtis McMullen, her doctoral advisor at Harvard, described her as having “a fearless ambition when it comes to mathematics.” 

This story first ran in 2017.

15 Fascinating Facts About Victoria

Courtesy of ©ITVStudios2017 for MASTERPIECE
Courtesy of ©ITVStudios2017 for MASTERPIECE

While The Crown may nab the bigger headlines, Victoria—the Masterpiece series that similarly follows a young-and-not-quite-ready royal’s ascension to England’s throne—beat Netflix’s pricey TV series to the air by more than two months. Though it was originally intended as a one-off miniseries, the show—about the early days of Queen Victoria’s reign—just kicked off its third season. To celebrate, we've gathered up some behind-the-scenes facts about the gorgeous, Buckingham Palace-set period piece.

1. Jenna Coleman left Doctor Who to take the lead in Victoria.

In 2015, Jenna Coleman surprised Whovians everywhere when she announced that she was leaving Doctor Who after three years on the series, where she served as a companion to both the Eleventh (Matt Smith) and Twelfth (Peter Capaldi) Doctors. Almost as soon as her departure from Doctor Who was confirmed, her casting as the lead in Victoria was announced. Not long after Coleman made her debut as Queen Victoria, her former Doctor Who co-star, Matt Smith, began his two-year stint as Prince Philip on The Crown.

2. Game of Thrones’s Emilia Clarke was among the actresses rumored to be vying for the lead role.

Victoria was originally meant to air as a single eight-part miniseries (its popularity is what led to a second season … and then a third). Because the time commitment wasn’t so intense, a number of well-known actors’ names were being tossed around as potential stars for the project. Among them? Game of Thrones’s Emilia Clarke and Downton Abbey’s Lily James.

3. Coleman was given access to Queen Victoria’s personal diaries.

Jenna Coleman as Queen Victoria in 'Victoria'
Courtesy of © ITV plc (ITV Global Entertainment Ltd)

In order to better help her get into the mindset of her character, Coleman was given access to Victoria’s private diaries. “I’ve read so many biographies, but I’m always looking for certain details which give me access to her character and her psychology,” Coleman told Vulture in 2017. “Her diaries are so methodological in a lot of ways. You can find out what she ate for breakfast and what time she did this and what time she rose and what time she did everything. The detail is crazy.”

4. Queen Victoria was an avid sketcher, which was enormously helpful to Coleman.

In addition to writing down even the most mundane details of her day, Victoria was an avid sketcher. Gaining access to the Queen's doodles gave Coleman an even deeper insight into Victoria's mind. “She sketched and had done watercolors since she was about five or six years old,” Coleman told Vulture. “You can see what she used to draw and what interested her from a really young age, and that probably gave me the best sense of her psyche. It’s been totally untouched. Nobody has been able to distort her views with her own eyes and her hands. It’s unfiltered in every way so they’re really, really interesting.” (You can see some of those sketches for yourself here.)

5. Queen Victoria and Lord Melbourne's relationship was complicated.

Rufus Sewell as Lord Melbourne in 'Victoria'
Courtesy of ITV Plc for MASTERPIECE

Victoria’s relationship with Lord Melbourne (played by Rufus Sewell) is one of the series’ most dynamic and touching. And while it plays out as somewhat of one-sided love affair in season one, the truth wasn’t quite as romantic. Though she was sometimes referred to as “Mrs. Melbourne” in a mocking manner because of the prime minister's influence over the young queen, their relationship was more like a parental one.

“What’s so wonderful about Lord M and Victoria’s relationship is that it was the prime minister and the queen. It was dear friends,” Coleman told Vulture. “She was 18; he was technically 56 at the time. They made each other laugh. They were like father and daughter in many, many ways. You really can’t quite put a label on it, other than it’s two people who really connect and charm each other through mutual likes and interests. They had a really profound love, but what that love technically was is unclear … I think he was the first person who didn’t try to manipulate her and didn’t try to control her. He really gave her a voice so the trust between them was genuine and two-way. They went through a lot together. He was the person who guided her and shaped her and trained her for the first couple of years on the throne."

6. Keeping the child actors entertained can be a challenge.

Over the course of their marriage, Victoria and Albert had nine children together. So as the series has gone on, the number of babies and children on set has grown. Writing for Marie Claire, series creator Daisy Goodwin admitted that keeping the youngsters entertained can require some creative solutions:

"One of the tricks we use is to dress their mothers up as nursemaids to keep them right at their side—but sometimes the kids just won’t play ball. In one episode, Victoria comes home after a trip to Scotland and rushes in all excited to see the children, but they didn’t even turn round to look at her. A bag of sweets later, we got them at least to look up when their 'Mother' walked in."

7. Coleman likes playing a pregnant Queen best.

Queen Victoria famously loathed being pregnant, which we witness in the series. She “absolutely hated it,” Coleman told Town & Country. “She called it ‘being caught’ … [E]very time she gave birth to a child, it took her out of being able to be Queen. Each time that happened, she was being more and more and more removed. And she’s an impatient person; she doesn’t like being told to lie down. She just wanted to do her job. She had this exhilaration and love for her independence, I suppose. And she hated breastfeeding; she thought it was for cows, not for humans. So a lot of the things that came with her being a mother, she found pretty vile, I think."

Coleman feels quite differently about Victoria’s pregnancies—or at least about playing a pregnant Queen. “I think I enjoy playing her most when she’s pregnant because one, I don’t have to wear a corset, but then two, I get to kind of waddle around, and I feel like she can just be foul-tempered and rude,” Coleman said. “I relish playing her when she’s like that because she doesn’t really care what anybody thinks, in a way. She does when it comes to the public and her people, but ultimately, you get free reign to play Victoria irritable and in a bad mood, and I really love playing her when she’s like that."

8. The child actors have “no respect” for Victoria, according to Coleman.

JENNA COLEMAN as Victoria and TOM HUGHES as Albert in 'Victoria'
GARETH GATTRELL/ITV Plc for MASTERPIECE

When asked about what it’s like working with a handful of kids on a regular basis, Coleman described it as both “absolutely crazy” and “hilarious.” Especially because the children are too young to understand what it means to stay in character. “Imagine toddlers, and you put them on set, and you kind of just have to get what you can,” Coleman said of shooting with her onscreen kids. “It's unpredictable, and incredibly funny because kids do say the funniest things, and they say the funniest things during takes. They ask Queen Victoria for some Doritos. It just becomes chaos, and I just absolutely get the giggles. They should release some footage of what really happens when the kids come to set. There’s no respect to Victoria. They completely rule me."

9. Buckingham Palace is actually an old airplane hangar.

Much of the series takes place at Buckingham Palace, and the show’s production team has done an amazing job of recreating the splendor of the property and what it would have looked like during Victoria’s reign. The location of their set, however, is not quite so glamorous. “The set where we film the Buckingham Palace scenes is in an old aircraft hangar, and is home to all kinds of wildlife,” according to Goodwin. “We had to stop shooting a very tender scene between Victoria and Albert because an owl kept flying through the frame, attracted by the jewels in Victoria’s hair."

10. Lighting all those candles is no easy task.

Victoria ascended to the throne in 1837, at about the same time that candlelight was being replaced with gas light in some of London’s most stately properties. While the switch to gas lighting has its own storyline in the series (there are rats involved), there were still a lot of candles to be lit on the set—about 300 in total. According to Goodwin, the process of lighting all those candles took an hour each time they shot.

11. The dog that plays Dash is no stranger to playing Dash.

Dash, Queen Victoria's prized dog, in 'Victoria'
Courtesy of ©ITVStudios2017 for MASTERPIECE

The adorable Cavalier King Charles Spaniel that plays the Queen’s most trusted BFF Dash has some experience with the role. “The dog who played Dash is actually called Tory, and she made her screen debut playing the same role in the film Young Victoria starring Emily Blunt,” Goodwin wrote for Marie Claire.

12. A bird played an unanticipated role in Victoria and Albert’s proposal scene.

Much like Victoria herself, some viewers were surprised to learn that when a Queen decides it’s time to tie the knot, she must be the one who proposes. Making the scene in which Victoria proposes to Albert even more awkward and difficult was the fact that an uninvited bird kept interrupting the production.

"The proposal, on paper it looked like a great scene but to film it was a nightmare,” Tom Hughes, who plays Prince Albert, admitted at a screening of the episode. “[It took] about 50 [takes] because there was a stray bird upstairs in the roof. Every time I got to the point where I say, ‘I have to kiss you first’, [the bird] thought that it was the most hilarious line it had ever heard. It was making a variety of all different noises, so that was the tough scene to film."

13. Prince Albert could be the next James Bond.

At this point, there are a handful of actors who have been rumored to be “the next James Bond,” and Hughes is one of them. The actor reportedly caught the attention of James Bond producer Barbara Broccoli after playing an MI5 operative in 2014 BBC miniseries The Game. When asked about his thoughts on taking on the iconic 007 role, Hughes responded: “Would I like to be James Bond? There’s not many people who wouldn’t want to be James Bond.” Though he made it clear that he had not been approached about the role, he stated that “I’d love them to ask."

14. The Duchess of Buccleuch was not so outspoken in real life.

In season two, the legendary Diana Rigg (who played Emma Peel in The Avengers TV series back in the day, and Game of Thrones’s Olenna Tyrell more recently) joined the cast of Victoria as the Duchess of Buccleuch, one of the Queen’s ladies-in-waiting. Though audiences love the character for her outspokenness, the real-life Duchess—who served as the Queen’s Mistress of the Robes from 1841 to 1846—was not quite so frank. “The real Duchess of Buccleuch was younger and not quite as cantankerous as Diana Rigg’s portrayal,” Goodwin said. “[But] when you’ve got Diana Rigg, you go with that!"

15. Albert’s imminent death is coming, and it’s a bit of dark cloud.

Jenna Coleman and Tom Hughes in 'Victoria'
Courtesy of Gareth Gatrell/ITV Plc for MASTERPIECE

Prince Albert died in 1861 at the age of 42. While the official cause of death was typhoid fever, modern scholars believe that he may have been suffering from Crohn’s disease or abdominal cancer. Knowing that Victoria and Albert’s time is limited is a fact that the cast can’t ignore. When asked whether knowing how this story ends ever affects her performance or how she approaches the character, Coleman admitted that it does. “I think everyone knows it’s coming, and it’s really interesting because Tom [Hughes] and I look a bit older in this series, and we’re so many children in,” she told Town & Country. "You kind of have that creeping feeling, but we still have an amazing part of the story to tell."

7 Ways to Take Advantage of the Bullet Journal Method

iStock.com/Neustockimages
iStock.com/Neustockimages

If you haven't heard of the bullet journal, it's the productivity method du jour—one that combines the features of a planner, calendar, to-do list, diary, and more. It's not a specific product (although the founder of the method, Ryder Carroll, has created a special notebook for it) as much as a way of creating a journaling system that works for you.

Proponents say the method helps you focus your time and your goals, in part through periodic "migration" sessions that force you to review how you've been spending your days. And yes, it's popular on Instagram—because many bullet journalers have filled their notebooks with colorful flair. (But that part is entirely optional.)

While core components of the bullet journal system like monthly spreads and daily logs are great, many bullet journalers like to add other features that fit their own life. After all, the beauty of the method is the customization and flexibility. We've rounded up a few ideas for new and not-so-new bullet journalers alike to try.

1. Track—and fuel—your creative projects.

Let's say that, like most people, you have a day job. But at night, you're writing the next Great American Novel—or at least some short stories. You might get an idea related to one of those projects on your morning commute or while taking a walk in the park at lunch. There's no time to pull out the manuscript, and if you email yourself the idea it might get lost in a jumble of newsletters and other alerts.

Instead, just start a new page for the project in your journal, note it in your index, and scribble away. You can come back to it later, and fill in other, non-sequential pages in the journal as the mood strikes. Your journal probably isn't the best place to write whole stories, but it's perfect if you just had a mini-breakthrough you want to take down, or even as a way to keep track of potential prompts and inspiration.

2. Improve your habits.

Habit trackers are some of the most popular add-ons to the regular bullet journal time-oriented spreads. You can make yours cute—tracking the number of glasses of water you drink a day by coloring in a big glass, say—or more minimalist, perhaps by listing the habits you want to build (yoga, waking up early) on the left next to a chart of days and coloring in the days you manage to do the habit. You can also create a page just to log you often you do one particular thing—drinking alcohol, for example. Some people even use their bullet journals to track food and digestive symptoms, either by creating a section for a food journal or just noting in their daily log when they eat a certain food and how it makes them feel.

3. Save money.

You can create a custom spread for your monthly budget, track all your expenses, or just track your purchases in a particular category (say, eating out) if there's a particular type of spending you're trying to curb. The design can be as crafty as you like—whether you're coloring in bricks that represent each $50 saved toward a house or just filling in columns noting every time you make a purchase. The key is that, as with health habits, writing something down can serve as a powerful motivator and/or deterrent, since you know you'll have to come face-to-face with yourself at the end of the month.

4. Plan your meals.

Nothing combines health and finance goals quite like planning your meals. You can make your meal plan a section of your weekly spread: Carroll, the bullet journal's creator, likes to set up a list of meals on the left page of his notebook and a shopping list of ingredients on the right. Dividing the items by categories (like meat, produce, and pantry staples) can speed things up at the store, too. It's great to do this at home so you can check the fridge and see what you're missing. Then, when you're done shopping, note how much you spent at the bottom of the list. You can track that to develop insights about your grocery budget.

Over time, you can also create lists to help you with meal planning, perhaps "Favorite Weeknight Dinners," "Easy Work Lunches," etc. Some people also like to create a master grocery list of frequently bought items they can consult whenever they're at the store, just in case they forget to write staples down on their weekly shopping list.

5. Remember the good things.

In our flurry of to-do lists, project deadlines, and meal plans, it can be easy to forget about the things that brighten our days, whether it's an especially funny joke from a colleague or a milestone in a child's development. Create a "memories" page (don't forget to log it in your index!) where you record the great stuff that happens, and pull it out to reflect whenever you're having a gray day. Some bullet journalers like to put pages like this toward the back of their journals to separate them out from the time-oriented spreads. A memories page is also a great opportunity to bust out some thematic artwork.

6. Track your reading lists.

Another great way to encourage better habits is through a reading log. Like a memory log, many people like to put this toward the back of their journal, although ultimately the placement is totally up to you. You can keep track of all the books you read this year, perhaps with notes on what you thought of them—a definite resource when you're drawing up those year-end best-of lists to share with other reading pals!

7. Pair it with an app.

While the bullet journal is touted as "the analog method for the digital age," most of us don't want to go full-on analog. There's now an official companion app that will help you organize and search your old bullet journals, help you learn the method, offer prompts, and serve as a log for when you're away from your journal. It's designed as an addition to the journal, not a replacement, so you still need to put in that time with pen (or pencil, or watercolor brush) and paper.

Bullet journals also pair well with apps like Evernote—for example, you can use Evernote on your smartphone to snap photos of text you scrawl down to save digitally for later use. (Maybe those on-the-fly notes on your novel go into an Evernote notebook that you consult when you have a bit more time, for example.) That's a good option for longer-term projects that might span a couple notebooks.

Many people also use both bullet journals and an online calendar, using the latter for fixed events like birthdays and doctors appointments and the former as more of a way to time-block the day and focus on goals. After all, the beauty of the bullet journal is that unlike digital space, the paper in your notebook is finite—which helps you realize that so is your time and energy. That makes it easier to plan accordingly.

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