Visit the University's Copyright page for guidance. Additional information about copyright and using images may be found on the Visual Resources Collection's (Dept. of Art & Archaeology) website (see Copyright on the left-hand side), the Visual Resources Association IPR and Copyright page, and the College Art Association site.
ArtStor is probably Princeton's most robust digital image database available, although we have access to others under the first link on left below. ArtStor hosts Department of Art & Archaeology image collections in addition to a large Digital Library of images from many important collections, as well as lots of open-access images. Princeton affiliates: for help with or questions about ArtStor, contact marquand@princeton.edu and/or visres@princeton.edu .