Meet the Mathsters. They are cuddly (yet sometimes irritating) creatures whose lives are surrounded by mathematics. The Mathsters books were designed for emerging readers and emerging mathematicians (kids beginning to discover math and its power). While reading the stories either alone or with an adult, children are invited to participate in mathematical thinking. Activities and suggestions at the end of the stories provide more ideas of fun things to do that continue to develop mathematical interests and understanding related to those in the story. Mathsters books help kids learn math.