 Wolman contributed several texts to the Letterist International's own bulletin, "Potlatch"; and, with Debord, he co-authored some of its most important texts, published in the Belgian surrealist review "Les Lèvres Nues" (Naked Lips).These included 'A User's Guide to Détournement' and 'Theory of the Dérive' (both 1956).The term "détournement" (literally 'diversion') signified the deliberate re-use of plagiarised material for a new and usually subversive purpose.