Finding & Using Subject Terms

Synonyms by Flickr user 46137 http://www.flickr.com/photos/wolfworld/2044708181/
Photo by 46137
P.S. You can find this book here

Articles in library databases have been categorized and assigned terms known as subject headings Subject headings: the most specific word or phrase that describes the subject, or one of the subjects of a work, selected from a list of preferred terms. or descriptors. Looking at the subject headings of a relevant article can be another great way to find good keywords to aid you in searching.