Tertiary Sources
[pb_glossary id="268"]Tertiary sources [/pb_glossary] are compilations of information coming
from secondary and primary sources; these can include lists
or collections, and are generally reference material that can
help you find, or direct you to, secondary and primary sources.
Examples of tertiary sources include:
- Encyclopedias, dictionaries, and almanacs
 - Indexes
 - Directories and guidebooks
 - Manuals
 - Databases, catalogs
 - Most textbooks
 

Sources
East Central University – Information Literacy Defined © 2021 by Shawna Bishop, Haley Monroe, and Brandi Schur is adapted from The Insiders: Information Literacy for Okies Everywhere, licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License, except where otherwise noted.
These are compilations of information coming from primary and secondary sources. Examples include: encyclopedias, indexes, and most textbooks.