Books like What Is Philosophy?

What is Philosophy? (French: Qu'est-ce que la philosophie?) is a 1991 book by the philosopher Gilles Deleuze and the psychoanalyst Félix Guattari. The two had met shortly after May 1968 when they were in their forties and collaborated most notably on Capitalism & Schizophrenia (Volume 1: Anti-Oedipus (1972); Volume 2: A Thousand Plateaus 1980) and Kafka: Towards a Minority Literature (1975). In this, the last book they co-signed, philosophy, science, and art are treated as three modes of thought.

Deleuze commented in a letter to one of his translators that his purpose in writing What is Philosophy? was to address "the problem of absolute immanence" and to explain why he considered Baruch Spinoza the "prince of philosophers." What is Philosophy? is concerned with, among the concepts that the book explores, the plane of immanence, conceptual personae, geophilosophy, functives, prospects, affects, percepts and chaos, as well as concepts in themselves understood as basic components of philosophy.