You may not have thought too much of it when you bought your first Harry Potter book or that old copy of Lord of the Flies from a garage sale, but you might want to look at your bookshelves again. Read on to see some very valuable first editions and what they are worth, using prices from AbeBooks and other book dealers and auction houses.

Note that the highest prices only tend to be achieved for pristine first-edition hardback copies with their original dustjacket coverings, if applicable. All dollar values in US dollars.

43 valuable books you might have at home