IRIS 42: Information and Research Instruction Suite for two-year colleges
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Authority

Who wrote it?
Who published it?

Whether you have the book in hand or you're using it online, sleuth around for biographical information about the author. Often, there's a short biography on the book cover; if not, look at the beginning or end of the book.

Look for the author's credentials and expertise in the subject.

An author with good credentials can lead you to more information. Locate other articles or books by the author to get more insight into the extent of his knowledge and experience in the topic he covers in his book.

find information about the author:

find information about the Publisher

A publisher's credentials can provide clues about the reliability of a source. An easy way to locate information about a publisher is to look up the book in Google Books, and follow the link to the publisher, as shown below.

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