Number and Letter Coloring Book helps children ages 3- 6 - learn fundamental concepts like alphabet and counting through coloring. Fun with Numbers and Letters. Activity Workbook for Toddlers & Kids . The Books are printed on one side of each large 8.5" x 11" page,95 pages professional quality designs. Each Coloring page is printed on a separate page to avoid bleed trough! Suitable for markers,gel pens,coloring pencils,fine liners,water colors.