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Background Sources
Description
Background sources (also known as reference sources) are tertiary and contain information we "refer" to, such as dictionaries and encyclopedias. These are good sources to use to get started - when you need ideas for how to narrow your topic, or could use more words to describe your needs (such as when thinking of keywords to put into a search box.)
Credo Reference offers background information on topics from hundreds of full-text general and subject-specific reference/encyclopedia titles, as well as 500,000+ images and audio files and over 1,000 videos.
An online collection of encyclopedias and specialized reference sources for multidisciplinary research. Small searchable and downloadable collection of electronic books on a variety of subjects.
▶ Check out our video on how to use e-books for research.
The "Overview" entries in this multidisciplinary database are very good background sources. Overviews are found at the top of the individual Topic pages.
This encyclopedic entry on medical marijuana in California could be helpful for understanding the context of legalization in our state. From Opinions Throughout History: Drug Use & Abuse. Includes the text of the 1996 Compassionate Use Act and the earlier laws that led to it.
Describes challenges faced by local governments implementing legal cannabis in California. From Legal Marijuana: Perspectives on Public Benefits, Risks and Policy Approaches (Credo Reference).
Overview of marijuana from a health perspective, including pharmaceutical preparations, health effects, and a glossary of key terms. From Gale Encyclopedia of Nursing and Allied Health (Credo Reference). Notice the related entries on topics such as tetrahydracannabinol, cannabinoid.