AT-A-GLANCE Vertical/Horizontal Erasable, Reversible Wall Calendar displays months by quarter for quick identification of important dates. Covers 12 months from January 2020-December 2020 for a full year of planning. Choose the layout that best fits your space. Reversible calendar displays the year in a vertical orientation on one side and horizontal on the other. Erasable write-on/wipe-off surface lets you quickly revise plans. Simply wipe the calendar clean and start over. Use with the included wet-erase marker Unruled daily blocks provide plenty of writing space for notes and reminders. 36" x 24" calendar is large enough to easily keep track of a work team or familyâs schedule.