Scanner - Electronic device used to make colour separations and sometimes halftones and duotones.

Sew - To use thread to fasten signatures together at the spine of a book.

Slip Sheet - Blank sheet placed between printed products to prevent setoff or scuffing during handling and shipping.

Small Caps - Capital letters approximately the height of lower case letters.
Soft Cover - Bound without a case; usually perfect bound, but also sewn and bound with a paper cover.

Specifications - Complete and precise descriptions of paper, ink, binding, and other features of a printing job. In typography, instructions about typeface and size, line measure, indentations, headlines, etc.

Step-and-Repeat - In photomechanics, the procedure of multiple exposure using the same image by stepping it into position according to a predetermined layout.

Stock - Paper or other substrate.