13. The process of claim 9 , wherein the determined presentation style comprises a one of the presentation styles in a set of possible presentation styles comprising: a rendered video class of presentation styles; and a real-world video class of presentation styles.
15. The process of claim 13 , wherein the video comprises an educational video, and the real-world video class of presentation styles comprises one or more of: a natural video presentation style; or a video of an interview presentation style; or a video of handwriting on paper presentation style; or a video of projected slides presentation style; or a video of a whiteboard presentation style; or a video of a blackboard presentation style.