This as-told-to essay is based on a conversation with Bridget Griswold, the 25-year-old CEO of Lean In, who lives in San Francisco. It's been edited for length and clarity.

I fell in love with technology at Brown University, where I studied computer science and business. I worked with two female professors to build a robot. I interned at a semiconductor manufacturing company and also loved design and art.

Product management felt like a really wonderful combination of all those interests, and that was my role at Meta a year after graduating from college. My team and I redesigned the Instagram search grid, so now when you search for large Instagram accounts, you're routed to the search results page rather than directly to those accounts. I'm very proud of that.

While at Meta, an incredible female mentor connected me to Sheryl Sandberg. Meeting her felt so surreal and is what led me to start my role as CEO at Lean In in March. It feels like a once-in-a-lifetime opportunity to do mission-driven work.

I was a swimmer as a kid, and as my swim coach used to say: "You get out of swimming what you put into it." I think that applies to many things in life: The more you put in, the more you get out.

Here's a day in my life.

I wake up to my needy, angelic cat around 7:30 a.m.

The second I wake up, I pet my crying and whining cat. She's an angel but very needy.

I'm not a breakfast person, but I need coffee immediately. I have many cups of coffee throughout the day. One of the first things I do is make some at home.

I always tidy up my apartment while brushing my teeth

The most productive two minutes of my day are when I brush my teeth. I clean and tidy my apartment at the same time.

I'm probably not super focused on brushing my teeth, which is maybe a problem, but I'm also making my bed, emptying the dishwasher, feeding my cat, or starting the coffee maker.

I always move really quickly; I don't like to sit still. Brushing my teeth and standing still would make me antsy, so I like to get something else done at the same time.

I'm still adjusting to West Coast hours

I moved from New York City to San Francisco in August.

In New York, I went to Solidcore classes before work every day. Working on the West Coast, the workday starts earlier than on the East Coast, so I'm still learning whether I like to work out in the morning or after work.

When I take the bus to the office three days a week, I often use that time to catch up on personal housekeeping tasks like scheduling appointments or texting back my friends who live on the East Coast.

I come to the office around 8 a.m. or 8:30 a.m.

A majority of my in-person time is spent in meetings. As CEO, I enjoy being involved in all aspects of the team.

I'll meet with our content and research team — we spend a lot of time digging into data, such as some really exciting new research on trad wives in the manosphere. I also often meet with our product and tech team, as well as many of our partners, to help grow our programs.

We have lunch in the office — my favorite is a salad-plus-smoothie combo — and it's a really wonderful time to connect with the team.

I also love connecting with our Lean In community. One thing we're focused on is closing early gender gaps in AI usage. Our flagship program, Circles, consists of groups of 8 to 12 women who meet regularly to support each other in their careers — we have over 170,000 members. It's a perfect forum to hold each other accountable for upskilling in AI.

Every week, I send AI tips to our network leaders. A recent one encouraged the use of AI notetakers, as women are more likely to take notes during meetings and miss out on participating.

Lean In is in over 180 countries, and it's really heartwarming to see that our commitment to our mission has a positive impact on women's careers. Getting to speak with them is really energizing and rewarding.

I rehearse for meetings by talking to myself on walks

Another habit of mine I've been told is weird is how I prepare for big meetings.

If I have a presentation or interview coming up, I'll set up a Zoom and practice speaking to myself. Talking for a long time is sort of an unnatural act, and the first time you do it is probably not going to be your best.

Sometimes, I'll even go on a walk and wear headphones, pretending like I'm in a meeting or on a phone call, but I'm actually talking to myself and practicing.

When there's a bug, I usually fix the code myself

Because of my background in computer science, I spend a lot of my time finding bugs or things I believe we should change on our platform. I'll code and fix those on my own. Thankfully, with AI, it's so much faster to code now than it was a few years ago.

Our team is busy, and my goal is to enable everyone to have as much impact and move as quickly as possible. If I can help unblock the tech team or resolve an issue rather than add it to their plate, I'm always more than happy to do so.

I leave work around 6 p.m.

I continue to work until I go to bed pretty much every night.

It's nice to have that time at home, when I'm not running around between meetings, to focus, give feedback on documents the team has sent, write, respond to emails, and brainstorm my own ideas.

I take breaks to tidy up my apartment and make dinner. Living in New York got me out of the habit of cooking, so I'm taking the initiative to cook more meals, like rice bowls. I would say about half the time I order takeout, like pho, and the other half I cook, which is progress for me.

If my work doesn't require intense focus, I'll do it from the couch and put a happy TV show on, which right now is "Schitt's Creek." I think it's a nice balance between relaxation and getting things done.

I usually get in bed around 10:30 p.m.

I've been trying to make a habit of reading every night instead of going on my phone, which has been a really positive change. I like anything I read to be a distraction. I'm currently reading "Big Little Lies" and enjoying it.

It's nice to spend 30 minutes reading something like fantasy that's completely different from what I think about at work. That way, I'm not spinning on all the things I need to do or coming up with new ideas that can't get done in my sleep anyway.

Weekends are for the beach and farmers market

My boyfriend works in Los Angeles and flies up to San Francisco every weekend. We've made a tradition of going to the Fort Mason Farmers Market on Sundays for fresh produce to cook an at-home meal that night.

I also enjoy seeing friends over the weekend. My preference is to go on a long walk or go to the beach. I also enjoy fitting in some work — emails, deep-focus work, or reading — throughout the weekend.

This as-told-to essay is based on a conversation with Jeff Kinney, the 55-year-old author of the "Diary of a Wimpy Kid" series, who lives in Plainville, Massachusetts. It has been edited for length and clarity.

Every year, when a new "Diary of a Wimpy Kid" book hits the shelves, I'm surprised that kids keep showing up.

I started writing the first book in 1998, while working as a computer programmer and game designer. I wanted to be a newspaper cartoonist, but that didn't work out, so I set out to get my cartoons published somehow. I was inspired by my own childhood experiences.

The first generation of kids who read my books is now almost 30 years old. It's wild to me that there's a new generation of kids encountering these books and finding them fresh.

As an author, I work within a few different spheres: books, my bookstore, movies, and development. I hop from one area to another.

Here's a day in my life.

I wake up before 7 a.m.

I don't set an alarm, so I wake up at that time naturally every day. I stay in bed for a while because after an ankle injury, I have some PT to do, like ankle stretches, while I'm in bed.

I meditate for about 10 minutes, set my intentions for the day, and organize my digital to-do list before I get out of bed.

I do two hours of exercise before breakfast

Right after I get up, I do about two hours of PT yoga, then weightlifting. I do that before I eat breakfast, which is often eggs and sausages.

I'm really committed to my morning physical routine of PT, PT yoga, and exercise. That's now become non-negotiable. I also do some journaling because it orients me toward the day, and it's a calming mechanism.

I've just had my most productive year, during which I wrote two books and two screenplays, so I attribute that to my morning routine. It grounds me.

I stay organized with a habit tracker

I've tried a million different to-do list apps that didn't work, including the pomodoro method and all sorts of others. Then I found a digital habit tracker.

I'm pretty diligent about checking off my daily habits. These include eating enough fiber, drinking enough water, waking up by a certain time, meditating, and doing stretches and yoga.

My workday starts at around 9:30 a.m.

I have about five or six workspaces, and I like to balance between them. One is a really colorful studio with my whole staff on the top floor of my bookstore, which is about three miles away from my home. When I'm not touring or working on a script, I go into the bookstore.

The bookstore is always top of mind for me, though the day-to-day operations are handled by the staff. Every so often, I'll get involved because we'll have a big author that comes to the store, and I'll interview them.

Another is my guest house, where I sit in the quiet living room. I also have a dark room in the basement where I'll go if I need to shut out everything. The other one is sitting in my car at the cemetery, where it's also very quiet. I can't listen to music because it occupies the same part of my brain needed for creating.

Sometimes I write for 8 to 12 hours a day

I feel most creative in the early morning hours, but sometimes I might write for eight to 12 hours a day.

If I'm illustrating, which I basically do all summer, I'll draw from maybe 9 a.m. until about 9 or 10 p.m. every day for months.

When I'm working on a book, I'll write the jokes first, then the manuscript, and finally I'll illustrate. I do all the illustrations myself. I don't usually combine those activities together.

I'm always stuck creatively, so I use a system

When I get stuck, I use something called systematic creative thinking, which helps me to produce material even if I'm not feeling creative.

I start with the components. If I'm writing about an airplane, I'll list the parts of the plane inside and out: the wings, the pilots, the lavatory, everything. Then I'll go through each component with a few different tools like subtraction and multiplication, and that's what gives me my raw material.

I'll use my iPad or my computer, or I have this device called a Freewrite, which is a super simple word processor that's not connected to the internet.

I don't stop for lunch

I only eat two meals a day, so I don't really step away for lunch — this is how I roll.

I do have an energy drink, but it's more of a habit than a need. I also don't typically take breaks.

I don't have many work boundaries

A good day is when I can get my to-do list to under 200 items, which is really hard to do. When I'm not illustrating, my wife might say, "Hey, let's have dinner," and that's my backstop for when I stop working.

Work is always on my mind, and I really don't have any boundaries. I don't tell people when I'm going on vacation because they'll reach me anyway, and I don't want to stop them from making progress. I usually make myself available, even if I'm away.

My team mostly communicates with me by text

Texting is how my team communicates with me. Email has become less useful for me because I get so many emails in a day that I feel like I'm a hockey goalie, and pucks keep whizzing past me.

I can really only answer emails right when I get them. Once they get too far down my list, I'll forget about them. I have a lot of challenges with executive functioning. I really struggle with having a lot of choices.

I've always answered my own emails, and I don't use AI to write.

I'm not often bored; I need stimulation

I don't play a lot. I sometimes go to Celtics games, or I'll go out to dinner with my wife, my friends, or my kids. I'm not often bored.

In fact, I feel very understimulated. I often feel like I'm not getting enough information, or there's not enough that's happening. For example, if I were to drive through the McDonald's drive-thru and get my food, I'd turn on the radio, tune in to some news program, and eat while reading the news on my phone.

Chicken McNuggets with sweet and sour sauce are probably my guilty pleasure. As far as watching TV goes, Survivor is always a staple in our house.

I go to sleep around 9:45 p.m.

These days I go to bed pretty early. I get in bed around 9:45 p.m., put in an earbud, and fall asleep with the news in my ear.