Proofreading

Proofreading is the reading of a galley proof or an electronic copy of a publication to detect and correct production errors of text or art. Proofreaders are expected to be consistently accurate by default because they occupy the last stage of typographic production before publication.

Professional proofreading

Traditional method

A proof is a typeset version of copy or a manuscript page. They often contain typos introduced through human error. Traditionally, a proofreader looks at an increment of text on the copy and then compares it to the corresponding typeset increment, and then marks any errors (sometimes called line edits) using standard proofreaders' marks. Thus, unlike copy editing, proofreading's defining procedure is to work directly with two sets of information at the same time. Proofs are then returned to the typesetter or graphic artist for correction. Correction-cycle proofs will typically have one descriptive term, such as bounce, bump, or revise unique to the department or organization and used for clarity to the strict exclusion of any other. It is a common practice for all such corrections, no matter how slight, to be sent again to a proofreader to be checked and initialed, thus establishing the principle of higher responsibility for proofreaders as compared to their typesetters or artists.