Bullying psychology is bad science: "bully" is a diagnosis based entirely on the victim's point of view, how a college counselor guided Izzy towards his career (it's not what you'd expect), the pros and cons of classic psychotherapy, the drama triangle, Adler, Izzy's business ventures, the value of roleplaying, and the little boy who spurred him to find solution to bullying.
A few of Izzy's roleplays:
https://www.youtube.com/watch?
https://www.youtube.com/watch?v=c_JVojbfNV0&t=41s
https://www.youtube.com/watch?v=qvts7cFTzrk&t=4s