"To the fullest extent" is an exciting book by the famous American writer Gretchen Rubin, which provokes readers to think about themselves, their values and the ways in which they spend their lives. In this book, the author shares her experience of rethinking her own life and looks for the keys to happiness. Through personal stories, her own analysis, and various studies, Gretchen Rubin guides the reader on how to find balance and satisfaction in everyday life. This book will be an inexhaustible source of inspiration for everyone who is looking for their inner path to happiness and harmony.