The Let Them Theory

Over 7 Million Copies Sold! #1 New York Times Bestseller #1 Sunday Times Bestseller #1 Amazon Bestseller >A Life-Changing Tool Millions of People Can't Stop Talking About

What if the key to happiness, success, and love was as simple as two words?

If you've ever felt stuck, overwhelmed, or frustrated with where you are, the problem isn't you. The problem is the power you give to other people. Two simple words--Let Them--will set you free. Free from the opinions, drama, and judgments of others. Free from the exhausting cycle of trying to manage everything and everyone around you. The Let Them Theory puts the power to create a life you love back in your hands--and this book will show you exactly how to do it.

In her latest groundbreaking book, The Let Them Theory, Mel Robbins--New York Times bestselling author and one of the world's most respected experts on motivation, confidence, and mindset--teaches you how to stop wasting energy on what you can't control and start focusing on what truly matters: YOU. Your happiness. Your goals. Your life.

Using the same no-nonsense, science-backed approach that's made The Mel Robbins Podcast a global sensation, Robbins explains why The Let Them Theory is already loved by millions and how you can apply it in eight key areas of your life to make the biggest impact. Within a few pages, you'll realize how much energy and time you've been wasting trying to control the wrong things--at work, in relationships, and in pursuing your goals--and how this is keeping you from the happiness and success you deserve.

Written as an easy-to-understand guide, Robbins shares relatable stories from her own life, highlights key takeaways, relevant research and introduces you to world-renowned experts in psychology, neuroscience, relationships, happiness, and ancient wisdom who champion The Let Them Theory every step of the way.

Learn how to:

. . . and so much more.

The Let Them Theory will forever change the way you think about relationships, control, and personal power. Whether you want to advance your career, motivate others to change, take creative risks, find deeper connections, build better habits, start a new chapter, or simply create more happiness in your life and relationships, this book gives you the mindset and tools to unlock your full potential.

Order your copy of The Let Them Theory now and discover how much power you truly have. It all begins with two simple words.

The cover has been updated to include the name of co-author Sawyer Robbins. Customers may receive either version of the cover at random.

Mel Robbins is the creator and host of The Mel Robbins Podcast, which is the most shared and followed podcast in the world and is nominated for the first-ever Golden Globe for Best Podcast, and author of The Let Them Theory, the chart-topping, #1 selling book of 2025.

She has amassed 40 million followers online and is one of the most respected experts in mindset, life improvement, and behavior change. The Wall Street Journal calls her a "billion-view podcaster," and TIME magazine says she gives millions of listeners around the globe "a reason to believe in themselves."

Her books have been translated into 65 languages and include the #1 New York Times, #1 Amazon, #1 Audible, and #1 Sunday Times bestselling The Let Them Theory, which is the top-selling book of 2025 according to Publishers Weekly, with 8+ million copies sold in its first eleven months. The Let Them Theory was named one of the Best Books of the Year by Amazon, Goodreads, Barnes & Noble, Audible, Books-A-Million, Publishers Weekly, Target, and Waterstones, and is on pace to become the most successful nonfiction book launch of all time. Robbins is also the author of the multimillion-copy-selling The 5 Second Rule, The High 5 Habit, and seven #1 audiobook releases on Audible.

USA Today calls Mel "a force to be reckoned with." She is a global phenomenon in the publishing industry and podcasting. Her Boston-based media production company, 143 Studios, produces award-winning content, podcasts, events, audio series, online courses, journals, and books, along with professional development education for partners like Starbucks, Ulta Beauty, JPMorgan Chase, LinkedIn, Headspace, and Audible.

The Mel Robbins Podcast is one of the most popular podcasts in the world. It is nominated for the first-ever Golden Globe Award for Best Podcast, and was named the #1 most-followed show on Apple Podcasts and selected as one of the best podcasts of 2025 by the Apple Podcasts' editorial team. It was recognized as the third largest show in the world by both Spotify and Apple Podcasts for 2025, and had the #1 most-shared episode of the year on both platforms. It also has won some of the most prestigious awards given to podcasts, including Webby, Signal, Spotify Creator, and iHeartPodcast Awards.

Notable accolades for Robbins include being named to TIME 100 Creators as one of the most influential digital voices of 2025, USA Today Top Mindset & Performance Coaches in the World, one of the fifty most influential influencers on The Hollywood Reporter's Creator A-List, and a Forbes 50 Over 50 Honoree.

Learn more at melrobbins.com.