Encyclopedias contain factual articles on many subjects.

There are two types of encyclopedias -- general and subject. General encyclopedias provide overviews on a wide variety of topics. Subject encyclopedias contain entries focusing on one field of study.

Use an Encyclopedia

  • to look for background information on a topic
  • to find key ideas, important dates or concepts
  • to discover words or terms that may help you in your search process


  • Encyclopedia Americana 031 E56 2006 (general encyclopedia)
  • Encyclopedia of Drugs & Alcohol 362.29 E56 1995 (subject encyclopedia)