"Happiness Hypothesis: Finding Modern Truth in Ancient Wisdom" by Jonathan Haidt is a thought-provoking book that delves into the connections between ancient wisdom and modern happiness. Published in 2006 by Basic Books, this trade paperback offers insights on personal growth, psychology, and philosophy. With Haidt's expertise in social psychology, the book explores the pursuit of happiness through a unique lens, blending ancient teachings with contemporary ideas to provide a comprehensive understanding of what truly makes us happy. At 320 pages long, this book is a compelling read for those seeking to enhance their sense of well-being and fulfillment.