The Let Them Theory

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:

• Stop wasting energy on things you can't control
• Stop comparing yourself to other people
• Break free from fear and self-doubt
• Release the grip of people's expectations
• Build the best friendships of your life
• Create the love you deserve
• Pursue what truly matters to you with confidence
• Build resilience against everyday stressors and distractions
• Define your own path to success, joy, and fulfillment
  . . . and so much more.

About the author

Mel Robbins is the creator and host of the award-winning The Mel Robbins Podcast, one of the most successful podcasts in the world, and a bestselling author. She has amassed 38 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 62 languages and The Let Them Theory is the top selling book of 2025 according to Publisher’s Weekly, with 6 million copies sold within six months of its release date. It is on pace to have the best non-fiction book launch of all time. She is also the author of the multimillion-copy-selling The 5 Second Rule, The High 5 Habit, and seven audiobook releases on Audible. The Mel Robbins Podcast has won some of the most prestigious awards given to podcasts, including Webby, Signal Awards, and more. It was also recognized as one of Apple Podcasts' Top Shared and Followed Shows of 2024 and 2023 and Spotify Top Global Shows of 2024. Notable accolades for Robbins include being named to Time 100 Most Influential Digital Voices of 2025, a Forbes 50 Over 50 Honoree, USA Today Top 5 Mindset & Performance Coaches in the World, and one of the fifty most influential influencers on The Hollywood Reporter’s Creator A-List in 2024.