Proofreading Marks (or Proofreaders' Symbols): What They Look Like and How to Use Them.

From the No-Nonsense Proofreading Course, a short presentation explaining how to use the various proofreading symbols (or proofreaders' marks) used by proofreaders and copy editors to highlight mistakes in a manuscript or proof.

Some people think these arcane looking symbols are a complication too far, designed to make proofreading appear an inaccessible 'dark art'.

They are, however, extremely practical. If you try to use full, or even abbreviated English, to point out errors in even a relatively well-produced manuscript, you'll soon find you've created an unholy, illegible mess.

Proofreading symbols communicate a great deal without taking up too much space on the proof.

You'll find more proofreading tips over at http://www.proofreading-course.com.