This book provides a fairly in-depth historical account of the processes and events which shaped the various lumps of rock we call Britain over geological time.
Each chapter deals with a particular period, and describes what was going on in each region. This means the emphasis is on describing the characteristics of each period rather than on the particular history of one region.
As a geology student (OU s260 this year, hello everyone), I've found this book really useful for getting a handle on the different periods - it does a good job of emphasising and contrasting each period's particular features. I feel I have some understanding of what differentiates the Devonian from the Silurian. I even know how long ago they were!
So why not five stars?
Firstly, the book makes little attempt to explain some of the terms it uses as it goes along. For a beginner, that can make it a bit of a slog at first. Having said that, you soon become used to the language and the second time you read it will be a lot more fun than the first.
Secondly, I'd have liked an additional chapter which gave a summary of the complete geological history of each of the regions. It would be nice to have been able to read in three or four paragraphs an overview of how Scotland happened. I think this would have been quite easy to do, and would have provided some useful broad context for the rest of the book.
Having said all this, the book is very useful, very informative, and packed full of exactly the sort of stuff you're interested in if you're reading a review of a book about Geology anyway!