This book set includes 6 books: 1. Dimensions Math Textbook Pre-K A 2. Dimensions Math Workbook Pre-K A 3. Dimensions Math Textbook Pre-K B 4. Dimensions Math Workbook Pre-K BThis book set includes 6 books: 1. Dimensions Math Textbook Pre-K A 2. Dimensions Math Workbook Pre-K A 3. Dimensions Math Textbook Pre-K B 4. Dimensions Math Workbook Pre-K B