Martine Delfos presents a brief introduction in autism. Often it is difficult to understand autism. Some of the confusion with respect to autism comes from the lack of distinction between what autism is and circumstances that can foster autistic behaviour, such as neglect or severe trauma. Delfos introduces the theory of the Socioscheme and the MAS1P (Mental Age Spectrum within 1 Person). The clear description and the use of many examples make this book readable without losing scientific and solid ground.