SP stands for "spelling error" when proofreading. It indicates that there is a mistake related to the spelling of a word that needs to be corrected.
There is no backslash proofreading symbol in existence, for more information on all the proofreading symbols, refer to this page: http://webster.commnet.edu/writing/symbols.htm
proofreading
no
not read
There are several processes that need to be completed prior to the proofreading stage in writing like planning and drafting. Revising and editing should also occur before proofreading.
When proofreading, those three dashes mean capitalize the letter.
It is important to use standard proofreading marks because it creates less confusion for the writer whose work is edited. The standard proofreading marks tell the writer exactly what needs to be corrected.
One can understand proofreading marks by reading guides on various websites like DesktopPub and Merriam. Both websites offer a variety of guides including one on understanding proofreading marks.
Proofreading
Proofreading means to read something & mark corrections in it. It could also be called editing. ChaCha on!
The writing in the way it is done, and the way it should be done. Proofreading is a correction process for spelling, grammar, and content.