Demos are a critical part of every business analytics implementation. There are frequent occasions during any project where we have to show present tools & processes: At the beginning, we might show the new software to our users to educate them. Later on we might want to review a prototype and we need to solicit productive feedback based on the demo. Training sessions require us to teach the new process and tool while also obtaining buy-in from the business. Overall, I would argue that being able to deliver a great demo is a critical skill for every business analytics professional.