The mull is a strip of cloth that is attached to the back of the sewn signatures and the tapes, and is also affixed to the cover boards with tapes. Cut a piece of cloth in a size that can conceal the top and bottom kettlestitches along with the tapes in between them; make sure that your chosen length is at least three inches wider than the back of the signatures so that it can be extended onto both sides.
By now, you should have had all the material and equipment ready with you. The next step is to start with the fundamental techniques of bookbinding. In the simplest of handbook binding procedures, there are six main phases, which are demonstrated in figures 12 to 17. Continue reading →