Paul Thurston's bridge textbook 25 Steps to Learning 2/1 (December 2004; ISBN 9781894154468) was an instant bestseller, winning the 2003 American Bridge Teachers' Association Book of the Year award. In a tantalizing postscript to that book, he promised a sequel, one that would cover 'the rest of the story' for those who wanted to add modern sophistication to their 2/1 bidding. Here at last he delivers, and the long wait has been worth it. The book describes an understandable and playable version of today's most popular system, something that has been missing from bridge literature until now. 2/1 game forcing ('two-over-one game forcing') is a bidding system in modern contract bridge structured around various formulaic responses to a one-level opening bid. Many improving bridge players enjoy the benefits of the 2/1 system.