We all know that schedules can change in an instant. With this calendar's laminated pages, you can easily schedule, erase and re-schedule appointments in an instant. Reference calendars make it easy to plan future events. 12 months per page. Reference calendar provides an overview of the entire year for future planning. 18 months: July to December of the following year. Double-sided, horizontal laminated pages offer an erasable writing surface for jotting down appointments and notes. One side shows the regular year; the reverse shows the academic year. Pages are wirebound for durability. Blue Sky Calendars part of a large selection of office supplies. Blue Sky(TM) Dry-Erase 18-Month Yearly Wall Calendar, 24in. x 36in., Mahalo, July 2018 to December 2019 is one of many available through Office Depot. Made by Blue Sky.