A poster providing the definition and some examples of tertiary sources.
Tertiary sources consist of information that is a collection of primary and secondary sources. Tertiary sources often provide information in a context that is able to be interpreted.
- Bibliographies: Also considered secondary.
- Dictionaries and encyclopedias: Also considered secondary.
- Fact books
- Indexes, abstracts and bibliographies used to locate primary and secondary sources
- Textbooks: Also considered secondary.