Book excerpt: Manel Baucells and Rakesh Sarin have been conducting ground-breaking research on happiness for more than a decade, and in this book they distill their provocative findings into a lively, accessible guide for a wide audience of readers. Integrating their own research with the latest thinking in the behavioral and social sciences—including management science, psychology, and economics—they offer a new approach to the puzzle of happiness. Woven throughout with wisdom from the world’s religions and literatures, Engineering Happiness has something to offer everyone—regardless of background, profession, or aspiration—who wants to better understand, control, and attain a more joyful life. • Shows how a few major principles can explain how happiness works and why it is so elusive • Demonstrates how the essence of attaining happiness is choice • Explores how to avoid happiness traps • Tells how to recognize happiness triggers in everyday life