David Edelman shares an article that extols the benefits of video as an effective business communication tool.   “When you buy a new car, do you really want to learn about it from a 300-page manual, or would you rather have a curated curriculum of two-minute videos that you work through at your own pace, which are not only tied to your specific car, but also reflect learning about your own dealer’s services, the add-ons you personally purchased, and questions…