This is absolutely the best reference book on dog breeds I have ever seen. It is huge, containing over 900 pages. There is information on every dog breed. Even extinct breeds are included accompanied by drawings. There is a least one photograph of each dog breed shown in full-color on glossy stock. The more popular the breed, the more photos there are of it. Most are large and several are in full-page format. Information on each breed includes country of origin, registry, group, colors, height/weight, other names & coat description. A detailed history & their personality traits are also included. This is the book to get if you want a great way to learn about rare & seldom seen breeds. The unusual appearance of some the dogs is fascinating.