A secondary source is anything that describes, interprets, evaluates, or analyzes information from primary sources. It is one that was created later by someone who did not experience first-hand or participate in the events or conditions. Common examples include:
- Books, articles and documentaries that synthesize information on a topic
- Synopses and descriptions of artistic works
- Encyclopedias and textbooks that summarize information and ideas
- Reviews and essays that evaluate or interpret something
