Book excerpt: Since 1888, Rangers and Celtic football clubs have been locked into an intense and frequently explosive rivalry: Rangers the product of West Scotland's Protestant establishment, Celtic the team founded to raise money for the Catholic underclass of Glasgow. On 2 January 2010 the two teams met in the Old Firm's New Year Derby, a fixture that had been banned for ten years because of the trouble it brought with it. Richard Wilson puts that game at the centre of a book which delves into the history and widens out to the cultural resonance of the fixture within Scotland. It is a potent mix of close-up observation and big-picture thinking, with insight, understanding and depth. Fully updated to cover the latest Old Firm stories, including Rangers' dramatic collapse into administration.