A Primary source of information is first-person, original information. Examples:
- a journal or diary
- original research
- interview
- letter
- speech
- original work of art
- government document
- research article from a variety of databases and web sites
A Secondary source of information is material that has been taken from primary sources and then synthesized. Examples:
- college textbook
- biography
- criticism
- historical study
- journal or magazine article that reviews original works
