Dear Jaehoon, I'm not sure how to advise you about what to send for editing.&nbsp;It depends on how long or complex the manuscript is and how much additional or rewritten material it contains.&nbsp; All I know about&nbsp;Editor World's policy on&nbsp;number of words is what's found in Editor World's list of prices, so again I'm not sure what to tell you.&nbsp; You could certainly send me just the new or rewritten content, especially given that I'm now somewhat familiar with your subject matter and your style.&nbsp; If the text you&nbsp;want to have&nbsp;edited is (1)part of a manuscript I've previously edited and (2)less than 200 words,&nbsp;it would&nbsp;be okay with me&nbsp;if you want to send it as an EW message and I'll do it for free.&nbsp; Of course, the problem with editing fragments is that there could be a glitch with continuity or consistency if I can't see the whole manuscript.&nbsp;&nbsp;Let me know what you want to do - I'll make myself "available" if you decide you need editing on more than 200 words, so we can do the transaction through the regular EW portal.&nbsp; Incidentally, I don't think it matters if you send me&nbsp;a manuscript with Track Changes showing or not, although that might not work in the messaging environment.&nbsp; &nbsp;RebeccaTDE