"La Vie devant Soi" is a novel written by Romain Gary under the pseudonym Émile Ajar. Published in 1975, it tells the story of a young Arab boy named Momo who lives in a Parisian boarding house run by an elderly Jewish woman named Madame Rosa. The narrative explores themes of love, identity, and the struggles of marginalized communities. The book is notable for its unique perspective, as it is narrated by Momo, who reflects on his life and the relationships he forms. "La Vie devant Soi" won the prestigious Prix Goncourt and has been adapted into several films, highlighting its enduring impact on literature and culture.