Magic was a hobby of mine for many years. I even produced the world's first online Magic Magazine (Merlin's Web - no longer available). I am a big fan of Penn and Teller. However, there is both good and bad magic on YouTube. If you want to see a true magical genius at work doing an effect that demonstrates several of Teller's principles, have a look at this (my all time favourite online performance):
Tommy Wonder wrote a two volume book (for magicians) which includes this effect. But although it is described, the reality is that many years of diligent work and thought is required to do this. The basic mechanics of the trick just scratch the surface.
https://youtu.be/yvURE6ueeEk
(Actually, I think it uses all the principles 1 through 7)!