Primary Source vs. Secondary Source
Primary source documents show direct, immediate or firsthand knowledge of a subject or event.
Secondary sources are writings without direct knowledge of a topic or event. These include biographies, monographs, and general periodical articles. Secondary sources are written by people who did not witness or experience an event but have a great deal of knowledge about the topic.
Scholars rely on primary sources to make arguments in secondary sources.
Primary Sources in the OWHL Catalog
Do a keyword search for your topic and include the words primary source in your search string. For example: when looking for primary sources about Thomas Jefferson you should type Thomas Jefferson primary source into the search box.