proof

…a critical operation, for the proofing must be carried out under conditions simulating as closely as possible those that will be encountered on the production press. Specially built proof presses make this possible. In appearance they resemble four conventional press units placed end-to-end, and the sheet of paper is passed…

…and marking corrections on a proof (the copy of a text that is submitted for correction) or other copy of the text of articles and books before publication. It is the final stage of the editing process, preceded by prewriting, planning, writing a first draft, revising, and editing. The goal…