International Standard Book Number in 1965, has – 340 indicating the publisher, 01381 their serial number, and 8 being the check digit. This can be converted to ; the check digit does not need to be re-calculated. Since 1 January 2007, ISBNs have contained 13 digits, a format that is compatible with "Bookland" European Article Number EAN-13s. An ISBN is assigned to each edition and variation (except reprintings) of a book. For example, an ebook, a paperback, and a hardcover edition of the same book would each have a different ISBN. The ISBN is 13 digits long if assigned on or after 1 January
Number 13 (2006 film) Number 13 (2006 film) Number 13 is the second of four adaptations of ghost stories by M.R. James broadcast by the BBC in a loose revival of the "A Ghost Story for Christmas" tradition of the 1970s. Following "A View from a Hill" the previous year and preceding "Whistle and I'll Come to You" in 2010, the forty-minute film was first screened in December 2006 on BBC Four. The film was adapted by Justin Hopper from the , first published in "Ghost Stories of an Antiquary in 1904. The film stars Greg Wise as an academic lodging in room 12