This pdf by 0one Games is 103 pages long, 1 page front cover, 1 page blank inside of front cover, 1 page editorial, 1 page ToC, 1 page back cover, 1 page ad, 1 page SRD, leaving 96 pages.
Passing by a couple of pages tabulating and categorising the dragons herein, we come to a Welcome! which explains both that this is the first softcover book in the Legends and Lore series (although preceded by several hardbacks) and something about the contents. The dragon, of course, is THE iconic fantasy monster, and one which characters, however powerful, ought to fear. Some of the dragons presented here are designed to be just that, the fearsome end-of-campaign climactic challenge