To solve the following several problems of a conventional calendar such as using a raw material except for paper for a binding tool and a ring, removing the past calendar paper sheet, being hard to see printing of a character and a figure of date display of before-after months, being unable to arrange calendar paper in month order, bending the calendar paper sheet and a photograph, being unable to post up a personal photograph and being unable to select whether to be hooked on a wall or to be used on a desk.

A calendar of the present invention is constituted of a calendar paper sheet and a layout sheet. The layout sheet has a noth of becoming a presser piece. A plurality of calendar paper sheets and photographs are simultaneously held by using the presser piece, and can be posted up by being vertically and laterally arranged, and can also be used by being placed on the desk using a connection piece equipped on the layout sheet.