In the Foreword of her book, Lyubomirsky discusses the universal desire for happiness, even if it’s not always openly acknowledged. She emphasizes that most people aspire to be happy because they believe it will improve their lives, whether in terms of professional success, spiritual fulfillment, relationships, or other aspects.

Lyubomirsky, a research psychologist, highlights the significance of scientific study in understanding and enhancing happiness. She acknowledges the recent surge in interest in happiness but insists on the importance of maintaining scientific rigor in this field and Debunking Happiness Myths. She believes that happiness is a valuable pursuit that offers numerous benefits not only for individuals but also for their families, workplaces, communities, and society as a whole.

She explains that the book is based on scientific research and aims to provide practical, Evidence-Based Strategies for Well-Being. Lyubomirsky introduces the concept of the “40 percent solution,” which suggests that 40% of our happiness is within our control through our actions and mindset. She stresses the importance of understanding why these strategies work and how they can be applied effectively.

Lyubomirsky divides the book into sections, starting with foundational principles about happiness and how to determine which strategies will work best for an individual.