(1) To print on the second side of a sheet already printed on one side. (2) To adjust an image on one side of a sheet so that it aligns back-to-back with an image on the other side.

Copy pasted up on the mounting board of a mechanical, as compared to overlay art. Also called base mechanical.

Negative made by photographing base art.

The standard size of sheets of paper used to calculate basis weight in the United States and Canada.

In the United States and Canada, the weight, in pounds, of a ream (500 sheets) of paper cut to the basic size. Also called ream weight and substance weight (sub weight). In countries using ISO paper sizes, the weight, in grams, of one square meter of paper. Also called grammage and ream weight.

Usually in the book arena, but not exclusively, the joining of leafs or signatures together with either wire, glue or other means.

Usually a department within a printing company responsible for collating, folding and trimming various printing projects.

Category of paperboard ranging in thickness from 15 to 48 points.

Rubber-coated pad, mounted on a cylinder of an offset press, that receives the inked image from the plate and transfers it to the surface to be printed.

Printing that extends to the edge of a sheet or page after trimming.

A page number not printed on the page. (In the book arena, a blank page traditionally does not print a page number.)

Image debossed, embossed or stamped, but not printed with ink or foil.

Sticking together of printed sheets causing damage when the surfaces are separated.

An enlargement, usually used with graphic images or photographs.

Prepress photographic proof made from stripped negatives where all colors show as blue images on white paper. Because 'blueline' is a generic term for proofs made from a variety of materials having identical purposes and similar appearances, it may also be called a blackprint, blue, blueprint, brownline, brownprint, diazo, dyeline, ozalid, position proof, silverprint, Dylux and VanDyke.

A description or commentary of an author or book content positioned on the book jacket.

General term for paper over 110# index, 80# cover or 200 gsm that is commonly used for products such as file folders, displays and post cards. Also called paperboard.

The main text of work not including the headlines.

Blocks of repetitive type used and copied over and over again.

Category of paper commonly used for writing, printing and photocopying. Also called business paper, communication paper, correspondence paper and writing paper.

Folded signatures gathered, sewn and trimmed, but not yet covered.

Category of paper suitable for books, magazines, catalogs, advertising and general printing needs. Book paper is divided into uncoated paper (also called offset paper), coated paper (also called art paper, enamel paper, gloss paper and slick paper) and text paper.

The decorative design or rule surrounding matter on a page.

(1) a repeating registration problem in the printing stage of production. (2) Customer unhappy with the results of a printing project and refuses to accept the project.

General term referring to paper 6 points or thicker with basis weight between 90# and 200# (200-500 gsm). Used for products such as index cards, file folders and displays.