Audio tapes can work well. Since not much attention has been given to video, there may be opportunity here. Every form of presentation is covered. Even how to deal with printers, if you prefer hard copy. And whether you decide upon hard or electronic copy, distribution and marketing suggestions abound.
Coverage is thorough.
The only flaw I found in MYKS is an implied assumption that anybody can produce most anything. It isn't so. While you do not need to be a prize winning novelist, you do need to be able to write effectively at the level needed. That is, you need considerable skill to compete with Ken's book. Ken Evoy argues that everyone has a great infoproduct within them.