This is a well written history of the Western Maryland Railway, covering the time from birth to being absorbed by the Chessie System. Background history during major decisions of the railroad is excellent, giving insight to the evolution of the company.
Illustrations and maps are plentiful, augmenting the text.
This is, in my opinion, the best book on the WM that I have read; it has earned a place in my personal collection. I constantly refer to it in my research, and often reread it for pleasure.