Magic in Harry Potter extraordinarily high turnover of staff members—throughout the series no Defence Against the Dark Arts teacher has retained the post for more than one school year. Harry is exceptionally skilled in this subject. During the period the story takes place, the class is taught by Quirinus Quirrell (book one), Gilderoy Lockhart (book two), Remus Lupin (book three), Bartemius Crouch Jr impersonating Alastor "Mad-eye" Moody (book four), Dolores Umbridge (book five), Severus Snape (book six), and Amycus Carrow (book seven). Hagrid suggests in "Harry Potter and the Chamber of Secrets" that ""They're startin' ter think the job's jinxed. No one's lasted long
Harry Potter in translation pass off as the translation of the real book by Rowling. There have been several such books, the most famous of which is probably "Harry Potter and Bao Zoulong" which was written and published in China in 2002, before the release of the fifth book in Rowling's series, "Harry Potter and the Order of the Phoenix". Other fake Harry Potter books written in Chinese include "Harry Potter and the Porcelain Doll" (哈利・波特与瓷娃娃 or Hālì Bōtè yǔ Cíwáwa), "Harry Potter and the Golden Turtle", and "Harry Potter and the Crystal Vase". In August 2007, "The New York Times" noted that the