Abstract: A book-marking device for marking a page location in a book. The device includes a pocket having a first end, a second end, and a mid-section, the pocket being of a pocket length between the first end and the second end the pocket length being adapted to extend approximately the cover length, and an elastic strap, the elastic strap extending from the first end and terminating in a strap end, and being of a relaxed length that is approximately as long as the pocket length. The elastic strap is adapted for extending around the cover to the second end of the pocket, retaining the pocket against the cover.