It's easy to get trapped in busy work. You are given a brief and a deadline. You leave everything aside and focus on your work in order to meet a set of deliverables. Finish the task, and you’re all done.
Well, there’s a little lie behind this story: you are not completely done yet. Today, the work you do doesn’t exist unless it's visible and accessible and shareable and understandable. Your job is not completed until your craft is properly documented, until you've created some sort of self-explanatory manual that we can peek at without you looking and we can read without you talking.
Prepare it as you do the job or after completing it—but please don’t forget to provide us with a manual so we can understand your craft!