Small book very useful to understand the primary functions of emotions often forgotten. It raised awareness of many things, this is a book to have with you, I also advise prospective parents to best support their children. Personally this book made me realize that my anger permanently was none other than rabies, not anger. And this rage that I had frustration inflicting me daily to stick to the perfect image imposed on us by society. Christelle Petitcollin helps us understand by simple and illustrative examples. And advise these are also very easy to apply. The fact that this free is short, allows to read it until the basics are well understood and that emotions are experienced as they should be with ease.