This A5 sized book is one in a series by Shire Publications. I didn't really glean much new information about the locomotive or the train, but after all this is only 56 pages with a plentiful supply of illustrations and period posters.
The book follows the story from the Flying Scotsman's (the named train) inception, through the period of the naming of the locomotive, the running of the train by diesel and electric traction following the end of steam and finally a look at the saving of the famous locomotive by Alan Pegler back in the 1960s and now owned by the British nation via the custodianship of the National Railway Museum.
As mentioned in my summary title, it is a brief guide but for those who don't want too much of an insight this is a neat little book that I am sure will satisfy you. It is nicely printed but the only problem with choosing such a small format is that the photographs don't have much of an impact.