Book Review: The Collector's Encyclopedia of Shells

This is overall favorite resource. It has tons of specimens from all over. It has photos for all of the shells. The only negative that I can think of is that it doesn't include the common names, which isn't really that big of a deal for me. I have heard of some other encyclopedias that are better, but this is the best one that I own. They are on my wishlist, but they cost over $100 each!