The book "Emotional Intelligence For Dummies, 2nd Edition" by Steven J. Stein. The book explores the concept of emotional intelligence, which is the ability to understand and manage one's own emotions as well as those of others. It emphasizes the importance of four key areas: self-awareness, self-management, social awareness, and relationship management. The book offers practical advice and exercises to help readers develop these skills and apply them in personal and professional contexts. It explores the benefits of emotional intelligence in areas such as leadership, relationships, and parenting, with a focus on developing empathy, effective communication, and stress management.