Rolling machine, a machine in which the sheets of a book are subject to heavy pressure by being passed between rollers.

Sawing in, when grooves are made in the back with a saw to receive the bands.

Section, the folded sheet.

Semée or Semis, an heraldic term signifying sprinkled.

Set off, print is said to “set off” when part of the ink from a page comes off on an opposite page. This will happen if a book is pressed too soon after printing.

Sheet, the full size of the paper as printed, forming a section when folded.

Signature, the letter or figure placed on the first page of each sheet.

Slips, the ends of the sewing cord or tape that are attached to the boards.

Squares, the portion of the boards projecting beyond the edges of the book.

Start, when, after cutting, one or more sections of the book come forward, making the fore edge irregular, they are said to have started.