To provide manufacturing cost savings for a plurality of printed leaves.

On a rectangular sheet 1, detachment perforations 3 are formed lengthwise and crosswise so as to equally divide the whole into 16 rectangular leaves 5. Each of the 16 leaves 5 has binding holes 7 formed in two corresponding spots along one mutually corresponding side. Each surface of these 16 leaves 5 is printed with the same positioning to the one mutually corresponding side. Both monthly calendar of January to December of the specified year and January to March of the next year are printed on 15 pieces among those 16 leaves 5.