His first published comics pages were for the story Le Conservateur, written by Rodolphe, which appeared in Imagine in 1975.

Floc'h created commercial illustrations, in which he explored new drawing techniques and developed a personal style based on graphic minimalism such as in Le Secret de la Pulmoll verte in 1980.

In 1991, he collaborated with Jean-Luc Fromental on a collection of cartoons inspired by the work of F. Scott Fitzgerald, Jamais deux sans trois.

[3] Floc'h and François Rivière collaborated on the novel Les Chroniques d'Oliver Alban, Diary of an Ironist (2006), in which they explored the art and literature from two decades: the 1940s and the 1970s.

In 2007, Floc'h published a very personal work in the form of his book Une vie de rêve: Fragments d’une autobiographie idéale, in which he lives a long life that extends from 360 BC to May 4, 2046, during the course of which he fulfills various fantasies (for example, he becomes a student of Plato and poses for Philippe Halsman).