Make a unique personalized calendar or help teach the concept of months, weeks, days, and a year to young ones. Each book contains 12 blank pages facing 12 gridded pages so you can start your calendar at any time during the year. Decorate the blank page with drawings, photos, poems and more! The overall size of the calendar is 8 1/2 x 11 inches. This particular listing is for 25 books. If you need to buy in larger (or smaller) quantities please see separate listings.