Quidditch Through the Ages to Find Them" have raised £17 million. In 2001, Rowling penned two companion books to the "Harry Potter series", "Quidditch Through the Ages" and "Fantastic Beasts and Where to Find Them", for British charity and offshoot of Live Aid, Comic Relief with all of her royalties going to the charity. As of July 2008, the books combined are estimated to have earned over $30 million for Comic Relief. The two books have since been made available in hardcover. Within the fictional world of "Harry Potter", "Quidditch Through the Ages" is written by Kennilworthy Whisp, a renowned Quidditch expert. In both
Religious debates over the Harry Potter series was ranked seventh on the list of the most challenged books in American libraries between 1990 and 2000 despite having been first published in the United States in 1998. In 1999, the "Harry Potter" books were challenged 23 times in 13 states. According to the American Library Association, they are now the most challenged books of the 21st century. However, the ALA notes that overall, opposition to "Harry Potter" in the US appears to be waning; having topped the list of the most challenged books in American schools in many previous years, they have to date failed to reappear in