Becoming a World Class Educator feat. Dr. Len Kravitz Leave a Comment / FitnessFest Podcast / By Jonathan (TEST PURCHASE) Kraft Episode 7 of The FitnessFest Podcast featuring Dr. Len Kravitz. In this episode Dr. Kravitz talks about his start in the fitness industry as a group exercise instructor and what lead him to education. FitnessFest ยท Ep 7 – Becoming a World Class Educator feat. Dr. Len Kravitz