I forgot to add this one:
Tolkien's Oxford by Bob Blackham
http://www.amazon.co.uk/Tolkiens-Oxf...1246335&sr=8-1
I got this one for Christmas and while I'm snowed under with dozens of new books (and distracted from ploughing through 'em by many other kinds of 'stuff'), I've had a good look through and it's
packed solid with ace photos, both old and current, of Oxford and its surrounding area. It's typical Bob Blackham and very entertaining and informative, plus has maps and all that gubbins for exploration purposes.
It's even better than his one on Brum.