In a life filled with meaning and accomplishment, Michelle Obama has emerged as one of the most iconic and compelling women of our era.

As First Lady of the United States of America - the first African-American to serve in that role - she helped create the most welcoming and inclusive White House in history, while also establishing herself as a powerful advocate for women and girls in the U.S. and around the world. She dramatically changed the ways that families pursue healthier and more active lives, and stood with her husband as he led America through some of its most harrowing moments. Along the way, she showed us a few dance moves, crushed Carpool Karaoke, and raised two down-to-earth daughters under an unforgiving media glare.

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.

For David Goggins, childhood was a nightmare -- poverty, prejudice, and physical abuse colored his days and haunted his nights. But through self-discipline, mental toughness, and hard work, Goggins transformed himself from a depressed, overweight young man with no future into a U.S. Armed Forces icon and one of the world's top endurance athletes. The only man in history to complete elite training as a Navy SEAL, Army Ranger, and Air Force Tactical Air Controller, he went on to set records in numerous endurance events, inspiring Outside magazine to name him "The Fittest (Real) Man in America."

In Can't Hurt Me, he shares his astonishing life story and reveals that most of us tap into only 40% of our capabilities. Goggins calls this The 40% Rule