It never goes wrong to buy photo collections of national geographic. Hardcover, 500 pages, high-quality pictures, at price $30. What do you expect?
The book is in high quality, in terms of binding and printing. The pictures included are also very interesting. About 250 photos are included, and usaully, one photo will cover too pages.
But I have a complaint. Most photos are not the original. The editor cut the edges, and only show the "main" part of the photo in this book. This causes two problems. First, I believe that when the photographer took the photo, he/she has special purpose for framing. Different photographer has different style. But now, the style of all photos look consistent!!! I want to see the original photos. Second, since a portion of the orignal photo is enlarged so much, the color is not as vivid as before.
But anyway, despite the drawback, it is definitely worth buying this book.