Do you hate losing your page when reading? What about losing your page even when you have a bookmark because your bookmark falls out? Well, my mom, aunt, sister and I hate it so we set out to solve the problem one afternoon. The end-result—fun and stylish Bookmark Covers. The reversible Bookmark Covers fit any standard size paperback and simply can’t fall off. We also made a similar cover for standard size hardcovers and library books. A perfect gift for any booklover.