J

jacket

The cover surrounding a completed casebound book.

jet black

A reference to the degree of an ink's or material's blackness.

job jacket

The documentation detailing the production requirements of an order. Besides specifications, the documentation may include photographs, electronic media containing files, etc.

joint

That bendable, hinge-like part of casebook where the cover and spine meet. Other Term: hinge.

justification

Adjusting the spacing or hyphenation of words and characters to fill a given line of text from end to end. See also: alignment; flush right; flush left; ragged right; ragged left; word spacing.

Justification, vertical

Adjusting the point size of text, or the vertical spacing between lines or elements of type, to fill a given vertical space. See also: alignment; flush right; flush left; ragged right; ragged left; word spacing.

jute

Burlap fibers. Used to produce strong and durable paper.