content: First of all it is a very short book about 40 pages, paper-back, and most of it is covered with pictures, also the book size is about 5"x6"; it's more like a brochure. That's fine if you want pictures, but it leaves little room for information. I certainly didn't expect to have the first half of the book giving pictures and descriptions of all of these different tree frogs, I bought it for the Red-eyes.The second half of the book (20 pages) gives little information. It doesn't even show cage setups.My advice, save your money and do a search on the internet, you will get more information.