Most reference resources are considered "tertiary" source materials. These books and websites provide background information and an overview and analysis of a subject or concept. Tertiary sources have been compiled from secondary sources. Unlike a secondary source book or journal article, tertiary sources are not intended to be read in their entirety. Instead, they are most often used to clarify terms and concepts about a particular topic. Tertiary sources include:
*Also considered secondary
A helpful feature in Credo Reference is the Mind Map. The Mind Map is a brainstorming tool with many key terms linked by lines to a related topic in the middle. And, you can see an image of what your search would look like if you searched Appalachia.
