Fore-edge painting
(重定向自Fore Edge Painting)

A fore-edge painting is a scene painted on the edges of the pages of a book. There are two basic forms, including paintings on edges that have been fanned and edges that are closed; thus with the first instance a book edge must be fanned to see the painting and in the second the painting is on the closed edge itself and thus should not be fanned. A fanned painting is one that is not visible when the book is closed.