Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Spiders of North America: An Identification Manual
By D. Ubick, P. Paquin, P.E. Cushing and V. Roth (eds)
American Arachnological Society, 2005
ISBN: 0-9771439-0-2
Cite: 35548
Guide to spider families and genera found in North America north of Mexico. Includes ID keys and hundreds of black and white illustrations. The keys and figures are quite technical, so beginners may want to look elsewhere. On the other hand, armed with the anatomy figures in the introduction, it can't hurt to dive in and get started! My only gripe so far is that it does not provide much information about specific species.

www.americanarachnology.org

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is this book worth getting?
I bought this book, and I have to say it is the best identification guide I have ever seen for any group of orgainsims. If you want to identify spiders in North America, this is THE book to have.

 
If you're really into spiders
This is a VERY detailed book and by no means, a field manual with pretty pictures to compare. You have to know spider terminology to follow the keys. Given my limited knowledge, I'd have to say that this is THE spider ID manual. BTW I was lucky to find on Amazon and, because I could, snatched it up for $40. BTW it has been reissued and is now readily available

Manual
Ordered mine five months ago and it is still not here. Hopefully it will arrive soon now.

 
Today
I ordered mine last year and it arrived just today! Maybe they gave me first dibs. :)