Patent ID: 7086667

Claim:
A coloring book having at least one page set, bound or stapled, wherein the page set comprises: a pair of background sheets, each having a different background design; a sharing sheet between the background sheets, the sharing sheet being coordinated with the background sheets, wherein the sharing sheet includes at least one aperture that exposes at least one of the background designs, the sharing sheet being blank or provided with at least one foreground design on at least one of a front surface and a rear surface-thereof and configured to provide a designated drawing space for creating a drawing in conjunction with the at least one background design; and at least one door provided by cutting a piece of the sharing sheet and leaving a portion attached, wherein the door is configured to open and close such that the foreground design on the sharing sheet coordinates with the background design on one of the background sheets in various manners when the sharing sheet is folded with each of the background sheets and the door of the sharing sheet has a shape different from a shape of the aperture, such that the background design is partially exposed when the door is closed.