In a different chart than the best-sellers she is used to, teen vampire romance novelist Stephenie Meyer has made it onto the list of the most challenged books in America.

In a list released by the American Library Association, the 'Twilight' book series has been the focus of efforts to ban 'inappropriate' reading material.

Here we have the top 10, with Robert Cormier's 'The Chocolate War' taking the tenth position. But which other reads received the most requests to be banned from US libraries last year, any why?

Reasons for attempted ban: Nudity, sexually explicit, offensive language, unsuited to age group