What a strange list. Many books I'd never expect to be listed, others I'd expect to be listed are missing. So I looked up the background and indeed it's based on strange methodology, citing wikipedia: "Starting from a preliminary list of 200 titles created by bookshops and journalists, 17,000 French participants responded to the question, "Which books have stuck in your mind?" (Quels livres sont restés dans votre mémoire?"
Makes more sense like that.