1. FIND BACKGROUND INFORMATION
Browse online or print sources to identify specific artists/works of art from different centuries. There are several reference books that can give you a good start, located by the Humanities Help Desk on level 5. See the "Background" tab and start with Oxford Art Online, where you can look up artists, movements, and various subjects or places.
Ex: Jackson Pollock (in Oxford Art Online)
2. FIND BOOKS (LIBRARY CATALOG)
For more specific books, browse by medium, nationality, etc. in ScholarSearch.
Ex: painting French 18th century
3. FIND ARTICLES
Browse in one of the image databases to locate images from a specific time period, subject, or artist. Start with with keywords for topic, style, time period, etc. Ex:
Consult other Subject Guides as appropriate. See the tab "Related Guides" for sources in Classical Art & Architecture, Iconography, etc.