To make your own Desktop calendar, you start out with a basic card front, 4 1/4" X 11" & fold in half. To create the folded inside. you need a piece of cardstock that measures 4 1/4" X 4". Score it on the shorter side at 1/2", 2" & 3 1/2". Fold it so the larger peak points up as do the ends & adhere inside the card. I bought the calendars from two places. I prefer these from Tailored Expressions.