On this page are sources of ready-information for questions like, when did when did Pablo Picasso die?, or for more complex information, like background information on the United States greeting card industry.
Use also to confirm factual information you find in places like Wikipedia.
Finally, reference sources often include bibliographies, making them profitable places to begin a research project.
Encyclopedias attempt to summarize the state of knowledge in a field of inquiry. A good encyclopedia can be a valuable starting point for your research.
Two online reference collections that students often find useful are: Credo Reference, and Gale Virtual Reference Library.
In this section we list some reference sources that you might find useful in studying visual representations of the past.