Copyediting Marks: Copy Editing Symbols and Proofreading Marks
Copyediting Marks: Copy Editing Symbols and Proofreading Marks
Copyediting marks are the standardized symbols editors use to annotate manuscripts for correction and revision. Copy editing symbols create a shared language between editors, writers, and typesetters that eliminates ambiguity and speeds the revision process. Whether working with printed manuscripts or reviewing the conventions for a publishing course, knowing copy editing marks is foundational for anyone entering editorial work.
This guide provides a working reference for copyediting symbols used in American publishing and explains their relationship to common proofreading symbols used at the later stage of production.
Copyediting Marks vs. Proofreading Marks
Copyediting marks and proofreading marks are related but serve different stages of the editorial process. Copyediting happens on the manuscript before typesetting — the editor works on the text directly, catching errors, improving style, and flagging inconsistencies. Proofreading happens on typeset pages, catching errors introduced during layout and any remaining text issues.
The copy editing marks used on manuscript pages are more extensive because the manuscript stage involves more substantive intervention. Proofreading marks tend to be simpler, focused on typographic errors, spacing, and layout issues rather than content.
Copy Editing Symbols: The Core Set
Most Frequently Used Marks
The most frequently used copy editing symbols include: the delete mark (a looped line through text to be removed), the insert caret (a ^ mark showing where text should be added), the transpose mark (a curved line indicating two elements should swap positions), and the close-up mark (curved brackets indicating space should be removed). These four cover the majority of common corrections.
Additional copy editing symbols address capitalization (three underlines for caps, a slash through a capital letter for lowercase), paragraph breaks (a backward P symbol), and run-in notation (a connecting line indicating separate paragraphs should be merged).
Copyediting Symbols in Digital Workflows
In contemporary publishing, copyediting symbols on physical pages have been largely replaced by tracked changes in word processors and comment functions in PDF annotation software. However, many publishers, book packagers, and editorial training programs still teach traditional copyediting symbols because they appear in archive materials, older style guides, and physical manuscript workflows.
Understanding traditional marks also makes digital annotation more deliberate — an editor who knows what a delete mark is trying to communicate uses the digital equivalent more precisely.
Common Proofreading Symbols
The common proofreading symbols set includes marks specific to the proofreading stage: the stet instruction (dots under text, meaning “let it stand” after a previous correction), wrong font (wf written in the margin), broken letter indicators, and alignment marks for lines that have shifted during typesetting.
Common proofreading symbols also include the instructional marks placed in margins alongside the text marks. A mark in the text without a corresponding margin mark is incomplete and may be missed by the typesetter. This two-mark system — text mark and margin mark — is a key feature of professional proofreading notation.
Learning Copy Editing Marks for Professional Use
Learning copy editing marks to a professional standard requires practice with real manuscripts rather than just memorization of symbol charts. Most editorial training programs include exercises where students mark up passages using the full symbol set and compare their marks with a key.
Pro tips recap: Learn the most frequently used marks first — delete, insert, and transpose cover most situations. Practice on physical pages before transitioning to digital workflows. Keep a reference chart nearby until the marks become automatic.
