This is an exceptional set of videos. The combination of live performances, with discussion after, really clarifies (and updates) Corinda. I suggest watching them with Corinda's book, a pad of paper for notes and whatever props are being discussed (for practice). With the dvd's you can pause, slow-motion and rewind easily to get the subtle nuances with each effect. A bonus to me was watching Richard Osterlind's showmanship (shown and explained). I've used his tips and totally spooked out a few people - using the right words and gestures adds a lot to the effect! I highly recommend this dvd set.