Andrew Martin is author of the SundayTimes bestseller To the Sea by Train, as well as the Jim Stringerrailway crime novels. His detective thriller The Moquette Mystery isalso published by Safe Haven.

‘A wittily written book’, Twentieth-Century Society magazine’A little gem of a book and, as its title suggests, is intended to be used much like a wildlife field guide. I recommend this book as a charming introduction to railway design’, Text, the journal of the Textile Society’A delightful book on an intriguing facet of London Transport - a fascinating niche, and I found it much more compelling than, say, rivet-counting on Josher-bowed narrowboats or valve gear on GWR locomotives. All in all, Andrew Martin has written an intriguing book that has opened up a facet of London's transport to a wider audience and he easily succeeds in hitting his sitting target,’ Subterranea