Whether we are aware of it or not, we manipulate others or we ourselves fall into the trap of manipulation when communicating with colleagues and superiors, in relationships with the opposite sex, parents and children, friends, loved ones and even strangers. Sincere positive emotions, happy relationships, pleasure from life - all this cannot be obtained through manipulation. The author of the book says that emotional intelligence is not just a means of protection against manipulation. This is the key to knowing yourself, your true values and desires, and therefore to managing your life. By understanding and managing our emotional reactions, we can make optimal decisions and choose those actions and behaviors that best reveal our potential. Emotional intelligence influences our development as individuals, the ability to communicate and create strong relationships not only in the work team, but also in the family, with loved ones and friends.