What is the typical timeline for developmental editing? What factors can affect the timeline for this type of editing?Developmental editing typically takes anywhere from one to three months, depending on the length of the book and the complexity of the project. Factors that can affect the timeline include the author's responsiveness to feedback, the number of rounds of revisions, and the editor's availability. It is important to discuss the timeline with the editor prior to starting the project in order to set realistic expectations.