Capitalization: CUPS for Editing Part 1
The rules for capitalization can be simplified down to a single general rule. If it applies to something GENERAL, then it needs a lowercase letter. If it is something that is SPECIFIC, then you need to use a capital.
Proofreader vs. Editor: Do I Need Both?
Proofreaders and editors do two completely different things, and both of them play a part in making your work the best it can possibly be.