An International Standards Organisation range of sizes of paper.

The extent to which a paper will take up and hold a liquid.

The first stage of drying of an ink when printed.

Paper which does not contain acid.

Very light paper made with extra strength to reduce postage costs.

Paper which has received a special coating to give it a smooth gloss finish. It's meaning is often confused but it is more easily termed as a gloss coated paper.

Original illustrative copy or layout ready for reproduction at pre-press stage.

Corrections made by the author on page proofs, that alter the original copy. The cost of making such alterations are charged by the printer, in contrast to printer's errors or house corrections.