OneSearch: Find Books, Articles & Films
Art Books: Examples
Worldcat: Find books in libraries worldwide, and order them via Inter-Library Loan if Hollins does not have them.
Kathryn Clark and art*
or use the advanced search:
Google Books contains full text for books in the public domain (pre-1923); partial text for books under copyright.
Very useful for finding out which books contain information on your topic; then you can order them via inter-library loan if Hollins doesn't have them.