Set Adult-Editions (with Error): J.K. Rowling - Harry Potter and the ….. - London, Bloomsbury - 1st Editions, 1 Imprints - Black Hardcovers with blind gilt Printing on Spine, with Dustjacket - text: English. 1: Harry Potter and the Deathly Hallows - 2007 - 607 pp - 20,5 x 13,5 x 4,4 cm. 2: Harry Potter and the Half-Blood Prince - 2005 - 607 pp - 20,5 x 13,5 x 5,2 cm. ERROR (see the green markings on the photos) which have been changed in the later Editions: pp 99: “ And when you've got your eleven “Outstanding O.W.L.s…“ changed to: “ your ten “Outstanding O.W.Ls…“ Condition: Both Items Very Good. These 2 Editions are highly sought after by Collectors. ¶ Joanne Rowling (1965), is a British Author and Philanthropist known by her Pen Name J. K. Rowling. She wrote a seven-volume children's fantasy Series, Harry Potter, published from 1997 to 2007. The series has sold over 500 million copies, translated into at least 70 languages. The Casual Vacancy (2012) was her First novel for Adults. Shipping with 'Track & Trace'.