Now that Nora has mastered the art of rolling over from her stomach (prone) to her back (supine), she felt it would be best to spread this knowledge to other babies around the world. There are only four steps, and she demonstrates them clearly in the following instructional video. If you, or someone you know, has trouble rolling over, it's not to late to master the skill! Follow closely with the instructor.
This video is also available on YouTube, Metacafe, Break, DailyMotion, Blip.tv, Veoh, StupidVideos, Sclipo, Viddler and Howcast.