Comments: The series of Harry Potter books is written by J.K. Rowling, and chronicles the school-age years of young wizards and witches at Hogwarts school of Witchcraft and Wizardry. Beloved by millions the titles have sold over 200 million copies world wide. The first 5 books of the series have been brought to the big screen by Warner Bros. Entertainment, Inc. and stars Daniel Radcliffe, Emma Watson and Rupert Grint.Moody received a plea for help from his old mentor in the Order of the Phoenix, Albus Dumbledore. Not only did Dumbledore need another new Defense Against the Dark Arts teacher, but Lord Voldemort had returned, and an experienced presence to protect the students - particularly one Harry Potter - was needed. Moody was the man chosen by Dumbledore to fulfill both roles and he agreed to take the task on for a year.