This book is an adaptation of a series of essays Katy created over the last five years in which she unpacks her evolving views on what she calls “movement ecology.” It’s not your typical “do X, Y, and Z” optimal living guidebook. It’s a thoughtful and thought-provoking look at why—as you can guess by the title—Movement Matters and a challenging look at how our individual and cultural decisions have created a sedentary culture and a significant nature debt that few of us ever stop to think about. Big Ideas: Stacking your life, minimalism vs. maximalism, the tree of your life, and redefining success.