Always a big comics fan, Philippe Chappuis launched his own comics magazine when he was twelve years old. He called it 'Zep...', and he used this name as his pseudonym from then on. After his studies in decorative arts in his native town Geneva, Zep made his debut in the magazine Spirou with the gag series 'Victor' in 1987.
Other early creations are 'Léon Coquillard (1990, text by Christophe Gilli) and 'Kradok' (1991, text by Leglode) and short stories for Fluide Glacial. His first albums appeared at Kesselring, G.S.S.A. and Atoz. In addition, his work was published in magazines like Femmes d'Aujourd'hui, Champagne!, Jeudi-Sports Magazine and La Vie.
His press illustrations in L'Hebdo and Le Nouveau Quotidien were noted by the publishing house Glénat. He joined this publisher in 1992, where he continued his comic series 'Titeuf', that was originally created for the fanzine Sauve qui peut, that same year. Within a couple of years, 'Titeuf' became one of France's most bestselling comics. It has a prominent spot in the Glénat comics magazine Tchô! since 1998 and was adapted into a television series on Canal J in 2001. Together with his wife Hélène Bruller, he has written 'Le Guide du zizi sexuel', an informative book on sexuality starring Titeuf.
L'Enfer des Concerts
Also in Tchô!, he has created the superhero parody 'Captain Biceps' together with Tebo. In addition, Zep created 'Les Amours Contrariées de Cain et Labelle' for the B.D.-Club of Genève, followed by 'Les Filles Électriques' and 'L'Enfer des Concerts' in the Humour Libre collection of Dupuis. The latter was a result from Zep's passion for music (is pseudonym is deriven from Led Zeppelin). He has also played in the bands Zep'n'Greg and Blük Blük.