  In 1719 Du Bos published Réflexions critiques sur la poésie et sur la peinture (Critical Reflections on Poetry and Painting), the book on which his posthumous reputation depends. Further editions appeared in 1732, 1733, 1740, 1746, 1755, 1760, and 1770. The work was significantly expanded and revised for the 1740 and subsequent editions. It was translated into German, Dutch, and English. Largely on the basis of the Critical Reflections, Du Bos was elected to the Académie française in 1720. He became perpetual secretary of the Académie in 1723.