The author: Daniel Wildenstein (1917-2001) was an art historian and member of the Academie des Beaux-Arts (Paris). From 1939 onwards, he was Director of the Wildenstein Galleries of New York, London and Tokyo. He edited several international journals, e.g. the magazine Arts from 1956-1962 and the Gazette des Beaux-Arts after 1963. He co-founded the Fondation Wildenstein in 1970 (it was renamed the WildensteinInstitute in 1984), and was a prime mover in many exhibitions of international repute. Daniel Wildenstein also edited the catalogues raisonnes of various 18th, 19th and 20th century artists. He was a world authority on Impressionism, and published catalogues of the works of Gauguin, Manet and Monet.