He is reading Manifeste contre la normalisation gay, by Alain Naze. In English the French translates into The manifesto against gay normalization.   Here's an author interview I found about the book from lundi.am. The article was more philosophical than I'm used to reading, but I think, in summary, Alain Naze says that the de-criminalization of same-sex relations is positive, but that trying to fit into heterosexual norms like marriage is limiting, shows a lack of inventiveness, and should not be an absolute goal. 

He mostly reads philosophy. His favorite author is French philosopher, Michel Foucalt.