Line editing covers mechanical editing and copyediting. In this stage, the editor goes through your manuscript line-by-line, looking out for errors in grammar, syntax, punctuation, and spelling. Developmental editing involves fixes in the manuscript concerning bigger issues, such as organization and presentation of ideas or thoughts, characterization, tone, emotions, narrative technique, and other major parts of a manuscript. Developmental editing will also take into account the impact the manuscript may or may not have on the readers. Line editing is a lighter process, mostly polishing the presentation of the book. This takes less time to accomplish. Developmental editing, on the other hand, takes considerable time since this would involve a back-and-forth between the author and the editor.