China the Silk Routes by Peter Neville-Hadley Pub. Cadogan and its English so should be available somewhere in London.
The Silk Road by Judy Bonavia Pub. Odyssey Hong Kong co so it may be available In GB too.
The Silk Road is a booklet I picked up in Dunhuang in a book store, both English and Chinese. Not sure of these: firstname.lastname@example.org
, or tel. 010-6520117,fax 010-65256624 . This is a travel booklet but one I enjoyed very much.
We did the Silk Road by BMW Motorcycle about 3 years ago.so all of these books have probably been surpassed. Had a wonderful time. Enjoy.