Cogitations, the last of the posthumous publications, is a collection of occasional writings representing Bion's attempts to clarify and evaluate both his own ideas and those of others by casting them in written form and frequently addressing them to an imaginary audience. Covering a period between February 1958 and April 1979, Cogitations
This is the most insightful book on psychoanalysis I've come across so far. I appreciate Bion for opening up with his insider's perspective.
I don't have a meaningful interest in psychoanalysis, it merely fascinates me as a curiosity, so I liked his insights as well as his amusing sense of wordplay.