If you’re looking for a quick reference sheet of proofreaders’ marks (and I promise, using them is so much faster than doing the corrections in longhand), here are two that seem useful: one from Merriam-Webster and one from Espresso Graphics. Both of these can be printed on one page, and they include helpful examples for each mark.


Thanks. The links were very useful to me.
Thank you – can’t believe how little information there is available (or findable) on this topic!