Page Layout / Keylining Prior to the introduction of electronic
publishing, page layouts were composed as mechanicals (also
called paste-ups or keylines). Artists and design professionals
(sometimes called keyliners) would assemble various elements on
the paste-up board. The elements could include type, which was
set on a phototypesetter and output in galleys of type on
phototypesetting paper; boxes drawn for photo placement; and
line art which was shot in a camera onto a stat, or as a
photographic print. Each element was pasted into position using
wax, spray mount, or rubber cement. Crop marks and registration
marks were drawn on the board and then a tissue overlay was
attached over the layout to be used as a guide for indicating
the location of color breaks or writing special instructions.
The resulting layout was referred to as "camera-ready art".
After completing the layout, a negative was produced. Black and
white photos were shot separately onto film using a screen.
Color photos were sent to a color sep