Two leading figures in contemporary thought, the philosopher Gilles Deleuze and the psychoanalyst Felix Guattari, have jointly written three books, each of which has meant fundamental milestones: The Anti-Oedipus (1972), Thousand Plateaus (1980) and, philosophy? (1991), a book that "condenses everything that the authors have wanted to do so far, both jointly and separately", in the words of Didier Eribon. Philosophy is not contemplation, nor reflection, nor communication. It is the activity that creates concepts, say Deleuze and Guattari. How do you distinguish yourself from your rivals, who pretend to provide us with concepts (such as marketing today)? Philosophy has to tell us what is the creative nature of the concept and what are its concomitants: mere immanence, the plane of immanence and conceptual characters. With this, philosophy is different from science and logic. These are not governed by concepts but by functions, in a plane of reference and with partial observers. Art is governed by precepts and affections, in a plane of composition of aesthetic figures. Philosophy is not interdisciplinary; is, in itself, a complete discipline that resonates with science and art, such as these with it: to find the concept of a function, and so on. What happens is that the three planes are the three ways that the brain has to coincide with the chaos and face it. These are the Caiodes. Thought can only be constituted in this relationship in which it is always in danger of abyssing. "This book is a bomb installed in the heart of philosophy, as Anti-Oedipus was in psychoanalysis. In the coming years we will observe its effects "(Libération). "Without any doubt, Deleuze and Guattari are philosophers like no other, except perhaps Spinoza; that is to say, creators of concepts "(Xavier Delcourt, La Quinzaine Littéraire). "One of those books, so scarce, that removes the thought, that forces us to see things differently. A book that will be returned often by its inventive force, by the brilliance of its formulas, by the image that gives of the thought. Very soon it will become a classic. And meet with the legend that preceded it "(Didier Eribon, Le Nouvel Observateur).