Glossary - A

  • A-sized paper – the most familiar system of paper sizes is the ISO standard, which includes the common A4 sheet. The ratio of all A-sized paper is 1:1.414, which means that, if you cut the sheet exactly in half, you are left with two sheets which retain the original ratio – hence if you cut an A4 sheet in half, you get two A5 sheets.

    A/W – An abbreviation for Artwork.

    Accordion fold – Bindery term, two or more parallel folds which open like an accordion.

    Acetate – A transparent sheet placed over artwork allowing the artist to write instructions or indicate where second colour is to be placed. (See Overlay)

    Acid-free Paper – Paper made from pulp containing little or no acid so it resists deterioration from age. Also called alkaline paper, archival paper, neutral pH paper, permanent paper and thesis paper.

    Addendum – Supplementary material additional to the main body of a book and printed separately at the start or end of the text.

    Against the grain – At right angles to direction of paper grain.

    Air – An amount of white space in a layout.

    Airbrush – A mechanical painting tool producing an adjustable spray of paint driven by compressed air. Used in illustration design and photographic retouching.

    Align – To line up typeset or other graphic material as specified, using a base or vertical line as the reference point.

    Alphabet (length or width) – The measurement of a complete set of lower case alphabet characters in a given type size expressed in points or picas.

    Alteration – Change in copy of specifications after production has begun.

    Anodised plate – An offset printing plate with a specially treated surface to reduce wear during printing.

    Apex – The point of a character where two lines meet at the top, an example of this is the point on the letter A.

    Apron – Additional white space allowed in the margins of text and illustrations when forming a foldout.

    Art – In graphic arts usage, all matter other than text material e.g. illustrations and photographs.

    Art paper – A smooth coated paper obtained by adding a coating of china clay compound on one or both sides of the paper.

    Artboard – Alternate term for mechanical art.

    Artwork – All original copy, including type, photos and illustrations, intended for printing. Also called art.

    Ascender – Any part of a lower case letter extending above the x-height. For example, the upper half of the vertical in the letters b or h.

    Author’s corrections – Changes made to the copy by the author after typesetting but not including those made as a result of errors in keying in the copy.

    Top