Discussing and exploring concepts is an important element of literacy and mathematics instruction in elementary classrooms. Read-alouds provide an opportunity for teachers to engage students in meaningful discussion. This article describes a quick three-step process for mathematizing books, that is, weaving together read-alouds, discussion, and mathematics in order to maximize student learning using a variety of literary and informational texts. A planning sheet, list of example books, and samples of student work are included.