I've just finished reading this book cover to cover. James Taylor really knows his stuff and he has managed to track down some excellent photographs and other material to back up the text.
The Photographs are excellently reproduced including some real rarities, and the text has many sidebars with additional information on the people and projects. Each Section has a breakdown of production numbers for that model and information of chassis (VIN) numbers etc.
This book covers only the "proper" land rovers, so no Discovery, Range rover or Freelander here, unless mentioned as part of the development of the Land Rover.
Many tidbits that even the enthusiast may not have seen before, such as the 80" series one built from parts in the 60's to evaluate the Rover 2000 engine in a land rover.
One of the most interesting aspects is the coverage of the variants built around the world, such as Santana, Penrite etc.
Pity about the rusty screw on the cover photo :-)