Holy cow -- this Big Monthly Planner is actually quite big! This Big Monthly Planner is sized at 12x17" and comes with 28 pages which lets you plan up to 14 months! Due to the size: the planner is quite spacious, and it's perfect for scheduling appointments. It's also quite handy to be used a group planner for company events, dormitory events, club events and so much more! There's actually more sizes available at mochithings.com in case you need something smaller!