This product is called Swiss/Euro binding. As shown, the book bound in this style can be bound with tape, exposed glue, flat wire stitching, side thread sewing or Smyth sewing. The distinguishing feature of these books is that the spine of the cover is not glued or attached to the spine. When the book is opened, the cover “falls off” the spine. The cover is only glued to the back of the book! Why do people want this style…beats me. Is it the novelty of the style, the fact that the book may lay flatter in a small percentage of this style? With adage “the customer is always right”, we will bind this style if that is what you want.