He illustrated both a book by Daniel-Rops, the Catholic writer (This face that looks at us), and the sulphurous work - banned by censorship - by Boris Vian, I will go to spit on your graves, texts of Edgar Poe, Raymond Asso, poems by Villon, Verlaine.
In 1948, he was the author of the sets for the play J'irai cracher sur vos graves which Boris Vian took from his homonymous novel and which he signed with his real name.
[6] Openly homosexual, proclaiming himself "painter of male beauty", he multiplied the drawings or paintings of a homoerotic aesthetic somewhat inspired by that of Jean Cocteau.
[7] Jean Boullet, during his life, met the Tout-Paris whose names were then: Édith Piaf, Michel Déon, Marie-Laure de Noailles, Jean Cocteau, Juliette Gréco, Jacques Chazot, Piéral (from 1942), Sacha Guitry, Marcel Carné, Roland Lesaffre, Kenneth Anger, Félix Labisse, Lise Deharme, Michel Laclos, Elliott Stein, Jacques Courtois.
A portrait in Indian ink made by him in 1943 representing the Breton poet wearing the yellow star is now preserved and presented at the Museum of Fine Arts in Quimper.