Bion’s thought, methodical and intuitive, gave rise to profound modifications in the approach to the psychology of groups, clinical work with psychoses, and the conception of the genesis of thought. Some of his original notions – psychic growth, processes of thinking, transformations, alpha function, maternal reverie – constitute valuable tools for rethinking psychoanalytic practice. This book places Bion’s thought within a filiation that is faithful to those of Sigmund Freud and Melanie Klein. It shows the parallels that exist between Bion’s formalisations and those of Lacan. It also lays emphasis on the mechanisms of thought arising from the negative (André Green), from logic (Lewis Carroll), from causalist philosophy (David Hume), from literature (Milton, Blanchot) and from the physical sciences (Stephen Hawking). Finally, Lévy underlines the importance of placing individuals within the collective from which they have originated. Psychoanalysis with Wilfred R. Bion will appeal to psychoanalysts and psychoanalytic psychotherapists looking to draw on the ideas of one of the most important and influential figures in the history of psychoanalysis.