This hardback book is a must for any Zelda fan. I cannot stress enough how great it is to see concept art and background information for every single Zelda game, minus the CD-i of course. (I can't wait to bomb some DODONGOS!)
Hundreds of pages, all coloured and beautifully designed, not to mention every page is thicker than normal, giving weight to every page. I love it, and my friends, who aren't particular Zelda fans loved it too! Even got them to try out Twilight Princess.
Only one thing to note, and it isn't necessarily a bad thing. Not every game gets the same amount of page numbers, with Skyward Sword taking over 60, and Twilight Princess taking 30, while Ocarina of Time taking only 5. This is due to the concept art being more numerous, more designs as the games got more intricate with their designs.
If you want to know what kind of book this is, it's half concept art, half behind the scenes, as there are pages dedicated to describing minor characters, giving offical backgrounds to them that we could only guess about. For example, the Great Hero in Twilight Princess who taught Link the Forgotten Techniques, his origins are revealed, and it's a doozy!
Not to mention the Official Zelda Timeline is finally revealed!
For what you get, I'd say it's worth far more than what they're charging, but I'm biased since I'm so happy with my purchase :)