Harry Potter is selling his Harry Potter book pictured with sister Katie Sign. The real Harry Potter is selling his Harry Potter book after discovering the fun gift from his dad is a first edition. See SWNS story SWMDpotter. Britains real Harry Potter is selling his copy of Harry Potter and The Philosophers Stone after discovering its a valuable first edition. And he plans to turn the fun gift, bought by his flabbergasted dad when it was published in 1997 due to the name coincidence, into a lasting legacy. Proceeds from the sale of the hardback book will be used to honour his late father. The hardback copy, one of only 500 in the first print run, is due to be sold at Hansons Auctioneers on October 7, guide price £20,000-£30,000. Harry, a 33-year-old national sales manager, was eight when the first Potter book came out. Thanks to Pottermania, hes spent the last 25 years trying to convince people his name really is Harry Potter.