Uh-oh, that question ends with a period and you need to change it. Well, this proofreaders’ mark is one of the easiest. All you need to do is draw a question mark wherever it ought to be: In the example below the inserted question mark is clearly visible, but you can imagine how easy it would be to miss the mark if it were buried in a dense page of text. To be sure it isn’t missed, it’s a good idea to write the word set in the margin and circle it. Set is an instruction to the typesetter that there’s a mark in the text that needs setting. (A circled question mark could too easily be mistaken for an editorial comment about a lack of clarity in the content.)
And here’s the question mark at work:
That red pencil still burning a hole in your pocket protector? You can find a full listing of all the Word Blog’s Proofreaders’ Marks entries here.