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Evaluating Information Sources: Books

Provides guidance on evaluating the credibility of information sources, including books, journals, the open Internet, and primary sources.

How to Evaluate Books

To Evaluate a Book look for the Following:

  • Purpose: Why was the book written? To:
    • inform?
    • persuade?
    • entertain?
    • teach how to do something?
    • give an overview?
  • Publisher: Who published the book?
  • University theses and dissertations are considered published by the university that granted the degree to the student who wrote it.
     
  • Organization and Content:

  •  Examine the table of contents and/or headings to determine if the book is organized in a logical and understandable manner.

  • Do the contents indicate that the book contains the information you need? Is there added material such as appendices?
     

  • Date of Publication:
  • Know the time needs of your topic and examine the timeliness of the book; is it:
    • up-to-date,
    • out-of-date, or
    • timeless?
       
  • Authority/author: Is the author an expert in this field? Where is the author employed? What else has he/she written? Has he/she won awards or honors?
     

  • Bibliography: Scholarly works always contain a bibliography of the resources that were consulted. The references in this list should be in sufficient quantity and be appropriate for the content. Look for:
    • if a bibliography exists,
    • if the bibliography is short or long,
    • if the bibliography is selective or comprehensive,
    • if the references are primary sources (ex. journal articles) or only secondary sources (ex. encyclopedias),
    • if the references are contemporary to the book or much older, and
    • if the citation style is clear and consistent.
       
  • Usefulness: Is the book relevant to the current research project? A well-researched, well-written, etc. book is not going to be helpful if it does not address the topic at hand. Ask, "is this book useful to me"? If it is useful, does it:
    • support an argument
    • refute an argument
    • give examples (survey results, primary research findings, case studies, incidents)
    • provide "wrong" information that can be challenged or disagreed with productively
       
  • Coverage: Does the book cover the topic comprehensively, partially or is it an overview?
     

  • Audience: For what type of reader is the author writing? Is the level of the book appropriate for your needs? Is the book for:
    • general readers,
    • students (high school, college, graduate),
    • specialists or professionals,
    • researchers or scholars?
       
  • Illustrations: Are charts, graphs, maps, photographs, etc. used to illustrate concepts? Are the illustrations relevant? Are they clear and professional-looking?
     

  • Context: Information is contextual. Who, what, when, where, why, and how will impact whether or not a resource is useful to you.