Please use the internet-based book store for any bargain textbooks, now I have some which I used most during my times of studies. 5 u9 P' t9 l. {. A& r& W' w ' c- r, e% K2 o; t% t3 i" YOne is as-you-mentioned "Second Hand Book Store", please use the link: http://www.abebooks.co.uk (This one really rocks, and I believe it should meets most of your demands. ) " `) O2 O/ `) R- ]6 h. @+ E4 r& h3 ^ X9 H
The other one - Amazon, however. It's not always cheaper than Abebooks, but you will find an even wider range of the book selections: http://www.amazon.co.uk 2 [0 z( z- j @% h) e- W1 H: t+ [& f) V% F4 e
The third one, which I used not that often, as this one actually has the real book stores all around the UK, named Waterstone's: http://www.waterstones.com6 M7 U' O5 E" s& c
% I4 E+ \9 c( O9 X& JBesides, for a postgraduate student, you may not have to purchase every book listed on your reading list, it's just simply because you need to read at least 4 or 5 books for a single course per average. Therefore borrowing from the university library as fast as you can would be even better, yet absolutely cheaper. " j! l9 w( ]( Q: Q+ b/ t $ Z9 q. Z+ Q- Q$ r. ^7 `) j& nSo you don't actually need to walk that far for seeking Bargain shops, everything can be done online. : @5 r* x, ~' O* L3 @ 3 G q" F- q/ G: z% uBest regards