Hooked

Nir Eyal explains how successful products create repeated user behavior through a four-part cycle of trigger, action, variable reward, and investment. Hooked draws from behavioral design, psychology, and technology businesses to show how habits can become connected to a product without constant advertising. Eyal offers a practical framework for entrepreneurs, designers, and product teams while also addressing the responsibility that comes with shaping behavior. The book is designed for readers building products intended to become part of everyday routines.