Revision is more effective when you approach it in cycles, rather than attempting to change everything all at once. You may, for example, take one pass through your draft to make sure you are addressing the expectations of a particular audience, and then a second pass to make sure the draft is focused on one central idea or argument. Yet a third pass or cycle may be dedicated to thinking through the logic or the evidence. As you revise, use the following checklist to help you focus on global issues.