All Groslier's major work was inspired by his profound love and respect for the Cambodian people and their culture. Referring to his numerous talents, literary scholar Henri Copin has written: In addition to his extensive body of scholarly writings on the art, archaeology and history of the Khmer people of Cambodia, Groslier's books include detailed travelogues as well as works of fiction – such as the novel Retour à l'Argile (Return to Clay (1928)), which won Le prix de littérature colonial (Grand Prize of Colonial Literature) in 1929 – describing his impressions of, and interactions with, Cambodians. Both institutions he founded, the National Museum of Cambodia and the Royal University of Fine Arts, are still in operation today.
