nongfuspring
Well-known
It's a matter of context. I probably frequently use the term body of work in academic writing because it is the most exact way of referring to an exact series/project/dead guy's work. Using the term in an everyday setting is usually a bit excessive because that level of precision isn't really required when people more or less already know what you're talking about. The difference between academic/specialist writing and more colloquial sort of stuff is that when someone is in the normal world, things happen more as an ongoing conversation - terms don't really need to be defined so specifically because there is a lot of contextual information at hand already, but in a more academic/specialist context we have to be a lot more didactic. Check out philosophy or political theory - sometimes centuries of misunderstandings and bickering over the inappropriate use of a capital letter.