He publishes a couple with the source code: https://github.com/Bleuje/processing-animations-code

Also he published some full tutorials that are more conceptual, which you can find here: https://bleuje.com/tutorials/

I found the tutorials had a lot of awesome ideas (like traversing 4d noise for a seamless loop!) which I ended up playing with in my own projects. I don't use processing like he does, but all the tutorials are very easy to understand even if that's not your tool of choice.