Here is a super slick way to tie a prusik:
This video comes from Jim who has several knot-tying videos on his YouTube channel. They are all well-filmed.
Jim also has a nice Google document called Knot Skills and Your Adventures. Like the videos, it is clear and easy to follow. His description of the Munter hitch as “one bight connected to one loop” makes it easy to remember.
Jim emailed me all these interesting resources a couple of days ago. He happens to be a recreational tree climber, which is something I hope to investigate in the future.

I have seen this demonstration live and Jim is amazing!!
: )