As a frequent visitor to London, and a fan of the tube system, I wanted to learn more about it and the history of it.
I saw this book in a shop in London and had a quick flick through and decided to buy it on Amazon (cheaper!) - I wasn't disappointed.
The book covers everything for the birth of the Tube to the latest developments and does so with a lot of background information on the who, what and why.
There is a lot of information to take in, and I personally found dipping in and out of the book a good way to read it.
Highly recommended for anyone with an interest in the tube network - or even for someone who just wantes to know how it all started.