It really depends on the amount of use it has actually had.

Is the spine creased at all? Any wear/creasing/rubbing to the covers? Any internal spotting or soiling? Any inscriptions?

Basically everything that seperates your copy from a fine, unread copy, every mark, scratch and bump, will lower its value to a collector.

The first issue paperback of 'Philosopher's Stone', with Thomas Taylor cover, published by Bloomsbury in 1997, was listed by Book & Magazine Collector at £50 to £75 in their July 2000 issue number 196.

In order to show how paperback issues tend to get left out of the collectable market there is also the listing the same magazine did 3 years later, in the July 2003 issue number 232 where they value it at that same £50 to £75 even though virtually every other Harry Potter collectable had risen in price over those three years.

. ------------------------------------------------------------------------------------------------------------------------------------------------------Whomever you may murder, there's no police like Holmes.
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