You are here: Home › Writing Skills Videos › The Comma: Introductory Elements ← The Dalai Lama on Religion: Your Thoughts? Sentence Tightening → The Comma: Introductory Elements This video details how to use commas with introductory elements. It was produced by and is the property of US Represented. The Adobe Flash Player is required for video playback.Get the latest Flash Player or Watch this video on YouTube. Thanks for watching.