Knowing that Pennsylvania is rich in railroad heritage, I snapped up this volume as soon as I saw it. At the time of purchase, I was glad to see that it was current, with the reasonable idea that it would be up-to-date. The one disappointing thing with this book has been the inaccuracy of the Internet Worldwide Web home page addresses given for many of the railroads documented, if a given railroad happened to have a home page. Today's connected world depends tremendously on accurate, up-to-date information in specialized interest areas, and as far as I am concerned, there is nothing more frustrating than to find a given home page address not available or outdated. If this book receives a revision, I would strongly advise the author to remove all of the web page addresses, state whether or not at time of writing there was a home page available, and admonish the reader to use his favorite Worldwide Web search engine to locate the home page of the desired railroad. Also, it would be good if he were to state whether or not there are "unofficial" web pages in addition to the "official," because these "unofficial" pages are usually photo collections to document one railfan's photojournalistic attempts on this "favorite railroad" of his.
Otherwise, this volume is well laid out, first providing an introduction to railroads in Pennsylvania in general, railroad terminology, and a brief history of the railroad in America. The book, as well as the state is divided into four geographic regions with the railroads in the appropriate region documented within that section. I found this type of layout useful for spare-time side trip planning if I was going to be in Pennsylvania for reasons other than railfanning.