IMHO

I think it is different for contractors. Headhunters aren't reading any of your resume until their search engine makes a hit on its criteria. Then they will actually put an eyeball on your resume, but, I've been told, then they will only look at the last 5 years of info. I have also been told by headhunters that a 10 page resume, for a contractor, is the upper limit. Other than that the " readable, enjoyable, accurate ..." rules all apply.