Best-selling book series for children in one year

According to figures announced by Publisher’s Weekly in March 2013, Suzanne Collins’s Hunger Games trilogy has surpassed Harry Potter's previous record for the most books sold in one year (19.8 million copies). During 2012, the Hunger Games franchise sold 15 million print books (8.8 million of which were hardcover) and 12.7 million e-books – giving an astonishing total for the year of 27.7 million copies. The books, which tell the story of a future in which children compete in gladiatorial-style combat to the death, gained momentum following the release of the first book’s film adaptation in March 2012.