"In all my years studying personal growth, Acceptance and Commitment Therapy is one of the most useful tools I've ever come across, and in this book, Dr. Hayes describes it with more depth and clarity than ever before."-Mark Manson, #1New York Timesbest-selling author ofThe Subtle Art of Not Giving a F*ckLife is not a problem to be solved. ACT shows how we can live full and meaningful lives by embracing our vulnerability and turning toward what hurts.In this landmark book, the originator and pioneering researcher into Acceptance and Commitment Therapy (ACT) lays out the psychological flexibility skills that make it one of the most powerful approaches research has yet to offer. These skills have been shown to help even where other approaches have failed. Science shows that they are useful in virtually every area—mental health (anxiety, depression, substance abuse, eating disorders, PTSD); physical...