Self-publishing authors often bypasses the filter of an editor. And while the opinion of an editor does sometimes conflict with the intention of the author, there have been plenty of self-published books (and big publisher books, for that matter) that have both terrible grammatical mistakes and poorly written prose. Whether deciding to get these services through us or someone else, we believe that the standards of literature should be kept high, and always recommend our authors get proofreading and editing services done for their manuscripts.