Here's your book block, all kettle-stitched together and looking damn good. At this point, you can take a ruler and a pen knife or scissors and trim the edges of the signatures to be flush with each other, but I like the variegated look so I opted out.  Photo 12 of 23 in Bookbinding by Jordan Kushins

Bookbinding

12 of 23

Here's your book block, all kettle-stitched together and looking damn good. At this point, you can take a ruler and a pen knife or scissors and trim the edges of the signatures to be flush with each other, but I like the variegated look so I opted out.