Jacob Two-Two is a series of children's books written by Canadian author Mordecai Richler: Jacob Two-Two Meets the Hooded Fang (1975), Jacob Two-Two and the Dinosaur (1987) and Jacob Two-Two's First Spy Case (1995) written by Mordecai Richler, and Jacob Two-Two on the High Seas (2009) written by Cary Fagan. Source: Wikipedia (en)