About the Book


Mark Hyman, M.D.

Head of Strategy and Innovation Cleveland Clinic Center for Functional Medicine, a 12-time NYT bestselling author

Your brain is the most powerful technology in the world, but you never got the owner’s manual. Until now.

You have no limitations. In spite of what others have told you, your potential is infinite—when you know how to use your brain.

For over 25 years, renowned brain coach Jim Kwik has worked closely with top actors, athletes, CEOs, and superachievers in all walks of life to unlock their true capabilities.

In this groundbreaking book, he reveals the science-based practices and field-tested techniques that the world’s top performers use to accelerate their learning and create world-class results.

At the heart of Limitless lies a life-changing secret: when you learn how to learn, you can break free of limiting beliefs, achieve new levels of success, and lead a truly exceptional life. This book is not theory. It’s a practical, easy and proven blueprint that shows you exactly what to do to unleash your own limitless powers!

Meet Jim Kwik

About Jim Kwik

Jim Kwik (his real name) is the widely recognized world expert in memory improvement, brain optimization, and accelerated learning. After a childhood brain injury left him with learning challenges, Kwik created strategies to dramatically enhance his mental performance. He has since dedicated his life to helping others unleash their brains’ true potential.

For more than 25 years, he has served as a brain coach to a who’s who of Hollywood elite, professional athletes, political leaders, and business magnates, with corporate clients that include Google, Virgin, Nike, Zappos, SpaceX, GE, Twentieth Century Fox, Cleveland Clinic, WordPress, and such institutions as the United Nations, Caltech, Harvard University, and Singularity University.

Through keynote speeches, he reaches in-person live audiences totaling more than 200,000 every year; his online videos have garnered hundreds of millions of views. Kwik is regularly featured in media, including Forbes, HuffPost, Fast Company, Inc., and CNBC. He is the host of the acclaimed “Kwik Brain” podcast.’s online courses are used by students in 195 countries.

Kwik, an advocate for brain health and global education, is also a philanthropist with projects ranging from Alzheimer’s research to funding the creation of schools from Guatemala to Kenya, providing health care, clean water, and learning for children in need. His mission: No brain left behind.

Online Training

Author Platform

Keynote Speaker

Reaches live audiences totalling 200,000+ per year

Online courses used by students in 195 countries

Kwik Brain Podcast

7+ million downloads, 2,900+ reviews

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Press Kit | Interview Questions | Jim’s Speaking Events

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Expert Endorsements


"This is for anyone held back by information overload, limiting beliefs, distraction, forgetfulness or low motivation. There’s no genius pill, but Jim gives you the process for unlocking your best brain and brightest future."


Head of Strategy and Innovation
Cleveland Clinic Center for Functional Medicine & 12-Time NYT Bestselling Author


"There’s a whole science behind brain fitness, memory enhancement, and mental acuity, and Jim Kwik is the ultimate guide. This book is a must read for anyone who wants to maximize their cognitive potential and learning abilities."


PhD. Director of the Women’s Brain Initiative and Author of Brain Food and The XX Brain


"Jim Kwik is just amazing. In my book ‘Use Your Brain to Change Your Age,’ I wrote a whole chapter about him because one of the strategies to reverse brain aging and to prevent Alzheimer’s disease is to work on your brain. And there is no one that I trust more than Jim Kwik and his programs to optimize brain functioning."


Clinical Neuroscientist & New York
Times Bestselling Author

Celebrities & Leaders Who Love Jim’s Work



“Jim Kwik is one of the smartest people I know. Having worked with superheroes throughout my career, I know superpowers when I see them, and Jim Kwik’s ability to help people learn is one of the world’s great superpowers. He’s trained our team and talent, I recommend his book to any person or organization looking to level up their mental performance.”



“As founder of the Women’s Alzheimer’s Movement, I’m keenly aware of how important it is to keep your mind and memory sharp. Jim Kwik’s tools and techniques in Limitless are your brain’s best friends.”



“As a person who has quested for knowledge his entire life, I fully embrace what Jim Kwik has to teach in Limitless. When you learn how to learn, anything is possible, and Jim is the best in the world at showing you how.”



"As a young girl, I dreamed of traveling to space. Dreaming big is something I’m passionate about teaching others, especially today’s youth. Jim shares that same vision that nothing can hold you back once you realize your limitless potential. Limitless will not only make you smarter, but help you dream bigger."



"As somebody who puts lots of emphasis on exercising the brain and not just the body, I found Jim Kwik’s work very empowering. Limitless will take you incredible places you never expected."

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