PROBLEM TO BE SOLVED: To provide a booklet so as not to serve a pattern without tightness such that the ground color (white) of a sheet of paper on the end side on the header side of the front and back on which a pattern of an adjacent sheet of page paper is not printed is viewed when the whole booklet is bent in a rounding direction and a tooth is lost in white, and also so as to allow different two types of images to be displayed on the header corresponding to a direction of turning over a page.SOLUTION: In the booklet in which a plurality of sheets of page paper including predetermined pages is interposed between the front paper and the back paper, and the front paper, the back paper and the page paper are bound on the back side, on the surface of each sheet of page paper that constitutes a continuous bundle of sheets of page paper among a plurality of sheets of page paper, an image dividing pattern display region at which an image dividing pattern divided with the whole pattern of the predetermined image in a vertical direction is displayed is provided from the end on the header side of the booklet to the region of the predetermined width to the back side direction.