Start with a few paperbags. I used four, it made a pretty thick book, once the embellishments are all added. Stack them together, alternating the openings. (Left, right, left, right). Fold the stack in half and stitch through the fold for stability. You can skip this step, but it holds everything together, so it's nice to do if you have a sewing machine.
Sorry for the spacing of the photos on this blog. The scans aren't the best, I didn't edit while scanning so there's going to be some gaps. This is a really long tutorial, so when you get to the bottom of the page, you'll need to click on "older posts" to continue. Have patience, and enjoy the book!