I've had a request for some French language books that deal with bullying. While this issue is addressed in a number of English picture books, and is often woven into YA novels, it can be hard to find equivalents in French. Here are some book suggestions I've come across. (Disclosure: I haven't read any of these titles.)
Booklist (+ video booktalks) on the topic of bullying
Bibliographie thématique sur l'intimidation (PDF)
Children's book suggestions
"Tous compagnons, foi de dragon." de Jean E. Pendziwol
Illustrations de Martine Gourbault [Scholastic]
"Tyranono : une préhistoire d'intimidation" (par Gilles Chouinard | Rogé) [Editions de la Bagnole]
A series of readers from Scholastic on this theme.
La série: "Attention! Intimidation"