Not sure whether the proper word is ensure or insure? A good editor will not only find typos and grammar goofs but can also suggest improvements to the flow and organization of a document or manuscript (or website!) and point out redundancies, repetitions, and inconsistencies in your work.
Sign up for my weblog and never miss a post! I’ll include examples of common errors and words that cause confusion (e.g., insure/ensure) as well as news about my work in progress, The Impeccable Editor’s Guide to Writing (and Rewriting).