Research demonstrates a strong connection between careful reflection and learning: thinking back on what you’ve learned and assessing it help make that learning stick. As a result, first-year college writing courses are increasingly encouraging students to take time for such reflection, both during the writing process and after the final draft is done. Whenever you finish a major piece of writing or a writing course, make time to reflect on the experience and see what lessons you can learn from it.
You will probably write a formal reflection for an academic or professional audience, but you may also consider an informal reflection for your own purposes or for an audience that expects informality.