Many times we said we would change a few things in our lives, but we do not dare take the first step, we do not know how ... Prof. Lejoyeux, through multiple very understandable explanations, examples from history, literature, explains why it can be good to change, and how. And in the end small book tests to judge its ability to change. It is certainly a psychology book, written by a professor of psychiatry, but it is very affordable with many anecdotes and examples. Because change is to first identify what is wrong in our lives, get to take the big step, first by sometimes small changes to get better.