Accordion books are easy to make and relaxing because they are so quick and involve no sewing. You select a cover piece, in this case, a piece of cardstock paste paper, fold it. Select similarly sized interior paper and fold that in accordion style. Paste one panel of the folded paper inside the back cover of the cover piece, and voila, an accordion book. Here is a blank accordion book with paste paper cover I'd made and below that, an art book in accordion style.