Oh, still in love with Processing from time to time. I think it’s not only because of the simplicity and beauty, but also at the great artistic works, that the guys behind and besides Processing made and make till today. Casey Reas, co-founder of Processing still works on his “Process Compendium“, that is dealing about “process-rules” – showcasing some of his works with lot’s of explanations and how he got there. I think this is one of the cool things of the whole Processing-community that is so very cool: they always, always combined their tools with great teaching and outstanding works (and how to get there).
Here is the text of the Process Compendium, but CreativeApplications got also a binary of the 15 minute lecture. I just copy the links to the binaries: Mac / Windows.