This book covers, counting, reading, writing and ordering numbers to 120, addition sums beyond 30, and patterns and sequencing, helping children to understand the whole number system. "While other workbooks try to cover a wide range of topics in each book, Kumon Math Workbooks tackle one skill set per book. We believe having one specific goal helps children focus on mastering one skill completely," Adam Hennessy, in marketing and account management for Kumon Publishing, told TDmonthly. Launch date: July 15, 2008.