Classic square format. Updated style. Our square 16-month wall calendars include 13 stunning images and even clearer grids and text. Each of these 12" x 12" calendars features an opening spread with a beautiful four-month (September-December 2020) calendar to plan the last four months of the year and rev up for 2021. Filled with an abundance of holidays, each month’s grid is large enough for daily tasks and appointments.