Only directions I could find online are for no-sew fabric bookmarks (using fuseable) or this
http://www.wikihow.com/Make-a-Fabric-Bookmark. There is a book, however.
http://www.violetpatch.com/shop/inde...&productId=165 The ones I've seen have been around 2" by 6" and sell for 5-10 dollars, depending on level of difficulty.