Many of us find the need to mark our maps, draw in areas, and annotate decisions. We all have a preferred method depending on our needs. Tim prefers map printouts annotated with red pen. I mark up maps more digitally by using sharpie on my computer monitor (not really, IT would hate me). Below we'll show you how to mark up your GIS map (without resorting to ink-based marking devices). Within the Markup tab, you'll see your drawing options by clicking the triangle next to the drawing button.