This is a VERY readable history of railways in the USA. The author also devotes a substantial amount of space to the social and historical background. Of particular interest to this reviewer was the detailed description of the damage inflicted on the railways by government regulators on one hand, and by the trade unions on the other.
The book is clearly aimed at the British reader, with numerous comparisons between the ways things were done in the UK and the USA. References to developments in other European countries are also provided. To the reviewer's regret technical details of steam engines, signalling &c are not covered in this book.
All in all, it's a thoroughly enjoyable, well-written and educational book.