This document discusses emotional intelligence (EI) and its importance. It begins by defining key terms like IQ, EQ, and EI. It then explores what emotions are and their physiological and psychological aspects. The document discusses models of EI by Daniel Goleman and Dalip Singh. It provides examples of high and low EI personalities. The document also summarizes several studies that demonstrate benefits of high EI, such as better health, life success, school and business performance. It explores whether EI can be developed and debunks some myths about EI. Overall, the document advocates that EI is important and can be improved at any stage in life.