I was surprised to see two one-star reviews. Having just read it I concur that not all of the stories are ghost-centric, exactly, and the inclusion of a glossary to explain terms like 'animal ghosts' and 'phantom' is baffling, as surely most readers of this book would be acquainted with the general idiom of the paranormal? The authors also give a lot of background to the locations and information about the trains and the history of the stations, but this I felt was justifiable, since it is less common knowledge and adds more of a setting to the stories.
Were it not for the fact that I'd just read 'Stranger in the Fog' and 'The Phantom Goods Train' - two anthologies of 'true' railway-related supernatural tales published in the 1980s - I'd have found much of interest in this book. As it was, quite a few of the stories were the same as those in the above-mentioned slim paperback volumes, and almost verbatim. Since this was written in 2008, I can only assume that those books provided much of the (uncredited) source material for this one.
It does have useful chapters on related literature and film, for example, and like the other volumes doesn't try to assert the truth or otherwise of the stories, so overall it's a fair and readable book. Those wanting neat explanations or involved narratives are bound to be disappointed in 'real' tales, which are often no more than an inexplicable feeling, brief sighting or a sound, and they may want to try the many anthologies of fiction instead.
Having looked online, I can't find other tales that were obvious omissions and/or of very different character, so between the three books I have to conclude that they provide a pretty comprehensive picture of reported sightings on UK railways.