I keep giving a good home to old accountancy books and I've picked up quite a few from there in basically perfect condition for as little as 1p.
Also if Amazon holds the books for the reseller you can still get free delivery although of course those one's are never 1p but sometimes they are less than £2.81 which is the price that a 1p book would work out to.
Never buy second hand tax books no matter how cheap as it's a false economy.
Don't buy financial reporting texts more than two years old (we now seem to be living in a time of relative calm in changes to financial reporting standards but between 2007 and 2011 I would have treated them like tax texts).
Management accounting and bookkeeping texts don't tend to change much and that's where you could pick up some real bargains.
One warning about buying via Amazon resellers.
I've purchased well over a hundred books from Amazon resellers and of those maybe 10% have some highlighting and noted. Of those only one was unreadable (the previous owner used a dark blue highlighter that seemed to turn the pages into censored documents!) and is the only accountancy text that I have ever had to throw away.
The likelihood is that the books that you get will be near perfect but there is always that 1% chance that you get a pup that's just not worth the time and effort of returning.
Hope that helps,
kind regards,
Shaun.
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Shaun
Responses are not meant as a substitute for professional advice. Answers are intended as outline only the advice of a qualified professional with access to all relevant information should be sought before acting on any response given.