| A | B |
| popular information | general information for general audiences |
| scholarly information | reports results of original research by an expert in the subject area |
| factual information | made of facts |
| analytical information | presents interpretation of facts |
| objective information | presents all sides of a topic |
| subjective information | expresses the author's opinions |
| primary information | firsthand information |
| secondary information | analysis of primary information |
| current information | reports information existing at the present time |
| historical information | reporting of information from past times |
| tertiary source | information resource that leads to secondary sources |