First of all, the photos in this book are just great! There are loads of excellent panoramic photos of big rides (Raptor and Mean Streak for example). The book also gives a good insight in the history of roller coasters.
Unfortunately there are some major mistakes. One example: It has a chapter about roller coaster designers which among others featuers Anton Schwarzkopf, who actually never designed a ride by himself. He was a great roller coaster builder, but all of his designs were done by a brilliant engineer named Werner Stengel. He designed about half of all coasters still running today (rides like Mantis, Raptor, Millennium Force, Great American Revolution, Expedition GeForce...) and is not mentioned in this book at all.
This from my point of view is serious and makes me thinking about what else is wrong in this book which I don't know about...

After reasearching, and riding coasters I soon fell in love with them. This book is an awesome must have book, even if you don't like reading. This book is packed with great color photos, and interesting and exciting facts. Talks about the highest, fastest, and coolest coasters. If you love coasters, or reading this book is awesome!

This book is out of date, but it has great coaster pics. I wish that the author would revise this book - add more up to date coasters and more park reviews. That would make it great.

I am an enthusiast amd I love this book! HUGE color photos and detailed descriptions. This book is worth every penny.

This is a marvellous guide to roller coasters around the world, from the new, parabolic kind (e.g. Steel Phantom - Kennywood Park Pittsburgh, Viper - Six Flags L.A.) to the classic wooden coasters such as Thunderbolt (Kennywood), Collossus (Six Flags Great America), Comet (Six Flags Great Escape) and the Cyclone (Astronland, Coney Island). It also reports on the extremely exciting developments in Europe (Pepsi Scream Machine - Blackpool; plus the new wooden wooden sensation in rural Wales). For the devoted enthusiast this is the ultimate guide.