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Reference sources like encyclopedia entries and subject dictionaries are great resources for learning about your topic.  What are the main theories related to your topic? Who are the key theorists? What disciplines are related to your topic? You can find scholarly summaries and background information on your topic using reference sources found in the resources listed below. 

Books offer in-depth coverage of a subject, overviews of a big topic, background information, as well as recommended readings, or a bibliography.  Academic books are often a collection of essays or have distinct chapters on specific aspects of the topic at hand.  Use the Table of Contents or the Index of a book to find the book chapter that fits your needs.