Use reference materials to find background information. Reference books can help you:
Need some more background information about that new concept you learned in class today? Writing a paper on a topic that's new to you? Not sure what topic to choose for your paper? Answer yes to any of these questions, and a subject-specific encyclopedia is the thing for you.
Wikipedia is a common starting point for many people researching a new topic, but unlike scholarly subject-specific encyclopedias, most professors will not allow you to cite Wikipedia in your bibliography. View this video tutorial, Wikipedia: Beneath the Surface, from North Carolina State University Libraries for more information about how Wikipedia works and its information quality.