DonMeixner: Actually, Van Gogh and Cézanne are not technically Impressionists, they're post-Impressionists. Van Gogh was influenced by Impressionism, and Cézanne did paint in an Impressionist style for a time, but they are not considered "of the school", so to speak. Take it from this former art-school student with several art-history courses under her belt. Or check out this page: http://www.ibiblio.org/wm/paint/glo/impressionism/

A bit about Vincent here: http://www.ibiblio.org/wm/paint/auth/gogh/

...and Cézanne: http://www.ibiblio.org/wm/paint/auth/cezanne/