The Book of Feuds is a book commissioned by South Sydney Rabbitohs co-owner Russell Crowe to chronicle the rivalries of the rugby club and to be used as a motivational tool. A chapter is dedicated to each of their 15 National Rugby League competitors. It was written by Mark Courtney. Originally, the book's contents were a secret but later extracts were seen being read by Crowe to the team in the television documentary South Side Story. Source: Wikipedia (en)