Editorial Style Guide
Styleguide Contents
Proofreaders’ And Editors’ Marks
The following marks are standard proofreading and editing marks. A professional proofreader puts a mark (usually a line or caret) in the line and writes the correction in the margin. An editor makes corrections within the line rather than in the margin (in part because an editor’s changes are typically more extensive), which is why editors prefer to work with double-spaced copy.
More extensive lists of proofreaders’s and editors’s symbols can be found on the web: the American Heritage® Dictionary has a useful list on bartleby.com.
NOTE: When marking up copy with changes, it’s preferable to use red or another color that is easily distinguishable from the black typescript.
