The table below lists the most important types of sources of information for finding what you need. From this table select the type of source(s) based on the kind(s) of information you need for your research project.
| If you are looking for: | Look in these Information Sources: |
| Biographies | Books, Periodicals, Encyclopedias, Web sites |
| Companies, People, Organizations | Directories |
| Facts | Almanacs, Atlases, Books, Dictionaries, Electronic Databases, Encyclopedias, Government Documents, Handbooks, Manuals, Newspapers, Web sites, Yearbooks |
| Graphics/Image-based | Almanacs, Atlases, Electronic Databases, Books, Web sites |
| Original Documents | Bibliographies, Books, Periodical Articles, Web sites |
| Popular Opinion | Books, Periodical Articles, Newspapers, Web sites |
| Products | Electronic Databases, Manufacturer & Vendor Catalogs |
| Professional Commentary | Bibliographies, Books, Periodical Articles, Web sites, Yearbooks |
| Research | Bibliographies, Books, Government Documents, Periodical articles, Statistical Abstracts |
| Statistics/Data | Almanacs, Atlases, Books, Electronic Databases, Statistical Abstracts, web sites, Yearbooks |
