The book collects 50 designs of fantasy vehicles, with several created by guest artists.
Plenty of variety is included. There are personal flight bikes, alien-like 4 wheelers, air ships, tanks (of course) and even a 6 legged mare. They are really creative and original, making this book a great resource book.
The process of creating each vehicle is shown from the basic shape construction, to adding details and finally putting in the colours. There are a lot of pointers given on creating the different part of the vehicles. But these pointers don't really explain the technical aspect of drawing. For example, it says that repeated elements such as legs should appear to be of identical proportion, but it doesn't mention how it can be done. The downside of the book is the lack of explanation on how perspective is used to design the vehicles.
So in summary, this book is loaded with tips and has great variety but is lacking in technical part that teaches how to draw. In short, it teaches the design aspect.
Keith Thompson has a website and you can see more of there.
There are more pictures of the book on my blog. Just visit my Amazon profile for the link.