Nudge, written by Richard H. Thaler and Cass R. Sunstein, explores the concept of 'nudging' and how it can be used to improve decision-making. Thaler and Sunstein argue that small changes in the way choices are presented can have a significant impact on people's behavior. This book delves into the principles of behavioral economics and provides practical examples of how nudges can be used to promote healthier, wealthier, and happier lives. It is an insightful read that challenges traditional approaches to decision-making and offers innovative strategies for improving outcomes.