This is a comprehensive book on emotional intelligence, a conjoint of different abilities. The book provides researchers, students, and professionals a comprehensive introduction, applications, benefits, and challenges for all aspects of emotional intelligence. The authors were motivated to write this book partly due to the lack of a single source of reference on the subject. Hence, the book will help a beginner to have an introductory knowledge about emotional intelligence. The main objective of the authors is to provide a concise treatment that is easily digestible for each aspect of EI. It is hoped that the book will be useful to practicing psychologies, social scientists, and business managers.