From the Dr. Seuss Stationery and Accessories Collection. Dr. Seuss Calendar Bulletin Board Set. Bring any classroom to life with this fun 12 month bulletin board set featuring The Cat in the Hat and various other Seuss characters! With the brightest colors, individual designs and variety of styles, the choices are endless. This 122 piece set includes an extra large 34" x 24" calendar grid, numbers, special days, months, days of the week and a weather indicator.