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Home>Academics>Sidney Silverman Library>Library Services>Identifying Sources>Primary vs. Secondary

Primary vs. Secondary

Definitions | Searching | Examples

Definitions:

  • Primary Sources are original materials such as autobiographies, poems, diaries, documents, research articles, original data, or an original creation such as a piece of art.*
  • Secondary Sources describe, explain or interpret primary sources. These include literature criticism, biographies, books about a topic, reviews, encyclopedias and dictionaries.

Searching:

Searching for these materials can be done by subject, name or keyword in books, articles or on the web. Please consult the Library Homepage at www.bergen.edu/library for access to these sources. The librarians at the Reference Desk are available to help with search strategies.

*Note: Reprinted primary source material is usually acceptable because the original document (i.e. Declaration of Independence) or the original piece of art (a painting by Picasso) is not available. In this case a book of documents in American history, or an art encyclopedia, would reprint the required materials which are the primary source, while the commentary on them would be the secondary source. If you are not sure, ask your instructor.

Examples:

Primary SourcesSecondary Sources
autobiographybiography
painting or object of artarticle reviewing or criticizing the art
personal diary or lettersbook about the person or event
treaty (government document)essay interpreting the document
poem, novel, short story, etc.literary criticism of the work
firsthand observer accounts of eventreport on event years later
play, film, television show, performancebiography of the writer
speech given by a personcommentary on the speech
research report by researchersinterpretation of the research
photographsexplanation of photographs

Last updated: 03 Aug 05,JGC
Content reviewed: July 2008, JGC