This is 1032 pages in 2 beautiful, sturdy, hard-cover volumes that does an excellent job of telling you everything you want to know about America's frogs. There are a lot of pluses here:1. As stated above, there is a LOT of information; 1032 pages worth, making this the most comprehensive guide to anurans ever written for the US/Canada region, and perhaps for any region.2. This set came out just last year, meaning it's about as up-to-date as it can get. It even includes information like the rediscovery of Lithobates fisheri, which I was unaware of until buying this book!3. The photography/illustrations are great. Don't expect huge photos, but what's there is good quality. There are even photos of tadpoles, eggs, and habitat, all of which are often marginalized in frog books. The maps are great too. If I have any complaints about the photos and illustrations, it's about what isn't there (for example):a) There are no illustrations that compare defining characteristics. For example, no photos of the venters of red-legged/yellow-legged frogs and their relatives, no illustrations comparing the dorsal morphology of the often very similar leopard frogs, and no illustrations of the head features that help to differentiate toad species. Such illustrations would have really put this book over the top.b) There aren't photos of each individual subspecies. There are descriptions of them, but no photos.4. The price, for what you're getting, really is a great deal. In fact, this book would be worth almost any price.Hopefully that was helpful.-Gene