This Undated 12 months of Calendars with Weekly Planners is 6 x 9 inches with 100 pages with lots of writing space for appointments, reminders, shopping list and daily affirmations.Perfect for pocketbook, backpack, book bag or bedside table.Since this planner is undated you can start it with whatever month you choose. Great as an Academic Planner for Teachers, Students, School Administration and School Bus Drivers. Please visit my store link above to see our large selections of journals, planners, composition notebooks and a variety of specialty journals and grid notebooks. Great place to shop for school supplies.