By John Vaughan (Published by Peter Watts Publishing) 
Published in 1983 this photo book covers railway operations across the South of the UK. The book looks at each class in turn and provides illustration of the typical services they operate. Starting with 10000 and 10202, then class 15s, 24s, 25s, 27s, 31s, 33s, 37s, 35s, 40s, 42s, 45s, 46s, 47s, 50s, 52s, 56s and occasional visits by 55s are all covered. there are also a number of photos of 73s and a 74..  
Illustrated with a mix of monochrome and colour photographs.
These books are new but old stock and may have minor imperfections due to their long period in storage.