Read transcript or proof type setup to detect and mark for correction any grammatical, typographical, or compositional errors.

Other names for Proofreaders and Copy Markers: Production Assistant, Production Proofreader, Proofer, Proofreader, Typesetter, Assistant Editor, Braille Proofreader, Checker, Checker Ii, Clerical Proofreader, Content Editor, Copy Editor, Copy Holder, Copy Preparer, Copyholder, Copyman, Copywriter, Data Examination Clerk, Desk Editor, Editor, Editorial Assistant, News Copy Editor, Page Designer,

• Correct or record omissions, errors, or inconsistencies found.
• Mark copy to indicate and correct errors in type, arrangement, grammar, punctuation, or spelling, using standard printers' marks.
• Read corrected copies or proofs in order to ensure that all corrections have been made.
• Compare information or figures on one record against same data on other records, or with original copy, to detect errors.
• Consult reference books or secure aid of readers to check references with rules of grammar and composition.
• Route proofs with marked corrections to authors, editors, typists, or typesetters for correction and/or reprinting.
• Measure dimensions, spacing, and positioning of page elements (copy and illustrations) in order to verify conformance to specifications, using printer's ruler.
• Read proof sheets aloud, calling out punctuation marks and spelling unusual words and proper names.