People are different from each other, and this often leads to conflicts and mental suffering. Understanding the nature of these differences will make our lives much more harmonious. You just need to realize that every person from birth belongs to a certain type of personality, and take into account the characteristics of this type. Using the famous Myers-Briggs Type Indicator as the main tool, the authors draw portraits of all 16 types, talk about how our natural preferences (extraversion / introversion; rationality / irrationality, logic / ethics, etc.) influence our destiny, inevitably manifesting itself in professional and personal life. Based on their many years of work experience, Otto Kroeger and Janet Theusen teach which human characteristics we need to put up with and which ones we can try to change, what we should expect or demand from our loved ones, friends and colleagues, and what they will never give us. The book will help readers to understand themselves and those around them and, accordingly, behave more effectively in a variety of life situations.