I have a lot of books I would like to sell in a yard sale but having trouble deciding how much to sell them for. I have read several sites and most have said to sell things for like 30% of the "new" price. I have a lot of paperbacks in good condition that were like $12-$14 when i bought them. And 2 Harry Potter (Hardback never been read) which are listed @ $19.99 and $29.99 if bought new. I checked eBay and looked @ some of the prices for the books I have and most are at least $4 w/ shipping if not more. So what would be a good price for books like that? Most of my books, bought new and for sale were about $13 each. Thought about selling them for like $3 or $4 or less if they are creased or have damage. I know people go to yard sales to get Cheap stuff but how cheap is too cheap from a seller's prospective.