Substantive or Structural Editing (So Your Readers Don’t Fall into a Big Ol’ Plot Hole). This is when your editor slogs through everything: structure, pacing and flow, character development, consistency, tone and voice, and much more. Since this involves every aspect of your book, it’s better to work with a substantive editor early on. This can involve rewriting on your part. Line or Stylistic Editing (So Your Favorite Words and Phrases Won’t Appear Too Often). Here, the editor goes line by line and paragraph by paragraph to check for things like clarity and coherence. Do you have pet words that you use too often? Does the text flow well, with good transitions and sentences that communicate well without being too long, dense, jargon-filled, or boring? These are the questions a line editor asks. Copy Editing (To Make Your High School English Teacher Proud). This is what most people call proofreading: the nuts and bolts of spelling, grammar, syntax, punctuation, and so on—the things that are objectively right or wrong and not as much a matter of mere style or opinion. It’s also about consistency. You don’t want you heroine’s eyes to shift from green to brown at some point along the way. Proofreading (To Make Your Book Pretty). This is done just prior to printing to ensure that the all the manuscript’s parts—text, graphics, captions, page numbers, white space on the page, chapter headings, and so on—are correct and aesthetically pleasing. This is the final step before publication.