I've seen quite a few of Kelly Hogans presentations. She is a ball of energy and my wife really likes listening to her, so I get most of my exposure that way. My wife took her sister to a recent low carb event in Omaha and got the chance to meet and briefly talk to Dr Berry. He has been an influence on us since very near the start of our low carb journey.

I'll put a couple links here in case anyone reading this thread does not know who we are talking about.

https://www.youtube.com/results?search_query=kelly+hogan+my+zero+carb+life

https://www.youtube.com/results?search_query=dr+ken+berry