Archaeology
- Primary source: an artifact (example: arrowhead)
- Secondary source: interpretation of what that artifact was used for
Art
- Primary source: original artwork
- Secondary source: article critiquing the piece of art
Biography
- Primary source: autobiography, memoir, correspondence, diary, journal
Secondary source: biography
Computer science
- Primary source: software program
- Secondary source: user manual for the software
Criminal justice
- Primary source: court transcript
- Secondary source: true crime book about the trial
Education
- Primary source: college catalog
- Secondary source: reference book reviewing courses from that college
Food service
- Primary source: recipe
- Secondary source: critique of the recipe
History
- Primary source: slave diary
- Secondary source: book about the Underground Railroad
Law
- Primary source: the Constitution
- Secondary source: interpretation of the Constitution
Literature
- Primary source: poem
- Secondary source: article on that poem
Photography
- Primary source: photograph
- Secondary source: a history of that photograph
Political Science
- Primary source: treaty
- Secondary source: essay on Native American land rights
Psychology
- Primary source: psychological test
- Secondary source: review of that test
Religion
- Primary source: Bible
- Secondary source: interpretation of the book of Genesis
Science or Social Science
- Primary source: report of an original experiment
- Secondary source: review of several studies on the same topic
Social science
- Primary source: interview or oral history
- Secondary source: interpretation of that interview or oral history
Theater
- Primary source: videotape of a performance
- Secondary source: biography of a playwright