From www.dickfrancis.com: Twice Shy is different from any other book Dick Francis has written - because instead of just one point of view, there are two narrators. One is Jonathan Derry, a mild-mannered Physics teacher who through a turn of fate ends up in possession of a computer program that can predict which horse will win a race. The second narrator is William Derry, Jonathan's younger brother, who is working as a manager of an American millionaire's English horses. The second part of the book takes up about ten years or more after the first. Everything centers around the computer program - what it does and who wants to get their hands on it.