John Young and David Tyreman the co-authors have produced a book covering all the 285 locomotives that comprised these classes of engines based on their personal involvement and research.One co-author worked in the CME's office on technical matters and was therefore in direct contact with Stanier when new classes were being worked up including the 2-6-0. The other is heavily involved in the preservation of one of the surviving locomotives. As usual with RCTS books all aspects of construction, modification, trials, use and allocation are covered in detail including storage and disposal. There are also chapters on the four in preservation