Shaders YouTube tutorials

It will be great if there was a tutorials of shaders on YouTube ex… (explaining individual nodes, mixing nodes to create certain effects)
I know it’s a lot of work but I’m sure it’s will be very helpful.

I do want to make some more but for now here are some existing videos:

https://www.youtube.com/playlist?list=PL2JfrQGqntMHiPICpQuq2Wnhhoq_fsqk3
https://www.youtube.com/watch?v=wuJjxmDJbXQ