Scholarly histories generally include esoteric terms and concepts that even the well-educated layman is unlikely to know. "Popular" histories are aimed at the general reader, and may be good introductions for the beginner. Unfortunately, they are not always authoritative sources. Here are some points to consider when deciding whether to spend money on a book or simply borrow it from your library.
Consider the Premise
Don't let the mere fact that a book has been published on a subject lead you to conclude that it presents a valid theory. If a work addressing a medieval event or topic concerns aliens, conspiracy theories or the descendants of Christ, chances are it's not useful history (but it might prove quite amusing!).
Investigate the Author
Has the author written other works on the medieval era and if so, how have they been received? Although no one is perfect in all his publications, someone like Norman Cantor or Frances & Joseph Gies can usually be considered reliable. If this is the author's first foray into the Middle Ages, find out if his other works concern history or a related topic, and consider their premises, as well.
Read an Excerpt
How can you tell if a first-time author has what you're looking for? Take some time to read part of the book at your local library or bookstore, or see if an online merchant has a sample chapter. This is worthwhile even with the best authors, who can't always be perfect.
Get the Best Bang for your Buck
History books are not just for reading and forgetting; the best are useful resources you'll turn to again and again. While a "good read" is always worth the time and usually worth the money, bells and whistles can help justify a book's expense. Illustrations and photos enhance the experience of reading history; bibliographies, maps, timelines and glossaries make for a useful reference.
Ask a Friend
Get the advice of someone who has read the book in question and whose opinion you respect. Post to a mailing list or bulletin board to see what other history buffs think. And read a review that doesn't come from the publisher.
