Art and photography books are a great source for images. There is a scanner available at the Reference Desk. Remember to cite the book, as well as the image.
Image citations typically include the following:
Images from the web should include the URL and date of access.
Images from books should include the book citation.
This website from the University of Cincinnati provides examples:
Information about citing images retrieved from ARTstor can be found here:
Observe copyright restrictions and properly cite all images downloaded from the web.