“Hooked: How to Build Habit-Forming Products” by Nir Eyal is a pioneering guide that unravels the psychology behind creating products that capture and retain users’ attention. Eyal introduces the “Hook Model,” a framework designed to help product designers and entrepreneurs understand and leverage the factors that contribute to habit formation. The book explores the four key components of the Hook Model – Trigger, Action, Variable Reward, and Investment – providing a comprehensive blueprint for building products that seamlessly integrate into users’ daily lives. Eyal draws on examples from popular apps and services to illustrate how successful companies employ behavioral psychology to create addictive and engaging user experiences. As readers delve into “Hooked,” they gain valuable insights into the subtle mechanisms that underlie habit formation and discover practical strategies for designing products that keep users coming back for more.