1. OPAC
Online Public Access Catalog. An online database of materials held by a library or group of libraries. Users search a library catalog principally to locate books and other material physically located at a library.

2. Dewey Decimal System
 A system used by libraries to classify nonfictional publications into subject categories.

3. Fiction
Literature in the form of prose, esp. short stories and novels, that describes imaginary events and people

4. Non-Fiction
Prose writing that is based on facts, real events, and real people, such as biography or history.

5. Periodicals
A magazine or newspaper published at regular intervals.

6. Boolean Search
A type of search allowing users to combine keywords with operators such as AND, NOT and OR to further produce more relevant results.

7. Copyright
The exclusive legal right, given to an originator or an assignee to print, publish, perform, film, or record literary, artistic, or musical material, and to authorize others to do the same.

8. Fair Use
The doctrine that brief excerpts of copyright material may, under certain circumstances, be quoted verbatim for purposes such as criticism, news reporting, teaching, and research, without the need for permission from or payment to the copyright holder.

9. Plagiarism
The practice of taking someone else's work or ideas and passing them off as one's own.

10. Genre
A category of artistic composition, as in music or literature, characterized by similarities in form, style, or subject matter.

11. Subject
A person or thing that is being discussed, described, or dealt with.

12. Call Number
A mark, esp. a number, on the spine of a library book, or listed in the library's catalog, indicating the book's location in the library.