Primary sources are original materials. They are first-hand accounts from the time period involved and may include such things as:
How to read and evaluate a primary source
Why study history through primary sources?
Secondary sources are created after the fact by individuals or groups who did not witness the events being discussed. They interpret, report, or correlate subjects based on their study of primary material. It is inevitable that we all interpret events of the past through the lens of our own experience, but reputable scholars attempt to minimize subjectivity.
In the Library Catalogue use keywords that describe your topic together with any of the following subject headings:
Examples:
Open Images - guide to finding open images on the internet and in library databases
Museum of Anthropology at UBC Collections Online
Buddhist Archive of Photography, Luang Prabang, Laos, / British Library
Victoria and Albert Museum: South Asia Collection