As vividly as possible, and with a wealth of examples, this book presents a systematic approach to problem-solving that is aimed at all of us who deal at some time with problems in our private or professional lives. The book discusses the many pitfalls and difficulties that need to be overcome on the way to successful problem-solving. Since these are mostly caused by the nature of our thinking, it delves, among other things, into the world of thinking errors and irrational behavior. Here, conscious and unconscious manipulation is briefly addressed.