Investigating Sex: Surrealist Discussions edited by José Pierre

These unbuttoned chats are described as "flawed, foolish, brilliant, clangingly sexual." The 12 sessions are also classics of unconscious humour.

In the first session, which runs to to 13 pages, André Breton announces, "I have the highest opinion of [female onanism]. I am entirely in favour of it." A surreal crony chips in: "Women are much more drawn to it than men".

Has he ever made any direct observation, inquires an interested party? "No." In the seventh session, an obscure surrealist reveals his encounters with a donkey. "It was always on Tuesdays and Saturdays before my history lessons."

Certainly the funniest book ever produced by an art movement, it is possibly the funniest book ever written about sex.