Primary Sources are immediate, first-hand accounts of a topic, from people who had a direct connection with it.
Examples:
Secondary Sources are ABOUT primary sources, though they often quote or otherwise use primary sources. Secondary sources present the analysis, synthesis, interpretation, or evaluation of primary sources and can provide value to a primary source.
Examples:
Tertiary Sources compile, index, and/or organize information from primary and secondary sources. A tertiary source is the furthest removed from an event, idea, or period and can provide researchers with an overview of background information.
Examples: