Popsugar Living Books Life Changing Books to Read in Your 20s 40+ Life-Changing Books to Read ASAP December 12, 2019 by Emily Co View On One Page Photo 35 of 42 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 35 The Secret An acclaimed book, The Secret is based off the theory of the law of attraction. Previous Next Start Slideshow BooksWellnessSelf ImprovementBook Roundup