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 11 million units in the first twenty-four hours of release. The series has also gathered adult fans, leading to the release of two editions of each "Harry Potter" book, identical in text but with one edition's cover artwork aimed at children and the other aimed at adults. Besides meeting online through blogs, podcasts, and fansites, "Harry Potter" super-fans can also meet at "Harry Potter" symposia. The word "Muggle" has spread beyond its "Harry Potter" origins, becoming one of few pop culture words to land in the Oxford English Dictionary. The Harry Potter fandom has embraced podcasts as a regular, often