For sample 4.9.2 I pinned, studded and added tied loops to the edge, this would allow layers to be added but on the left hand side pinned some wide bias binding which was slit so that it could be used as a hinge. The bottom edge had hand stitched button hole detail which could also act as a joining edge if another edge was butted against it.
The samples, 4.9.5 and 5a show one piece of paper that was too large for the scanner but the run of a double line of a machine stitch, stitch 14 on my machine, and used on the edges, was also placed in the middle to show that the paper could be folded into a book shape. The rounded edge of the paper on the bottom left of 4.9.5 would probably look better as the top right corner of a finished cover, giving a glimpse into the content or index of the book. As in sample 4.9.2 the background fabric was a 'sieved' fabric.