Daniel Goleman is a psychologist and science journalist who wrote about emotional intelligence in his bestselling book Working with Emotional Intelligence. The book discusses what emotional intelligence is, its importance, and its four main components: self-awareness, self-management, social awareness, and relationship management. Studies have shown that emotional intelligence is essential for effective leadership and impacts work performance, as managers with higher emotional intelligence tend to be more successful. Understanding and managing emotions helps individuals and leaders handle interpersonal interactions, motivate teams, and improve work outcomes. The book argues that emotional intelligence is a learned skill that can be developed to achieve better results.