Another subject that is fairly simple in concept, ridiculously complicated in the wiki-type/diagram explanations and made enjoyable/understandable by Sam.
I would imagine that these “lego bricks” can be used by experts to create masterpieces, but for a long while I will be using them to produce materpieces of code based on Italian cuisine. I really need to work on my code documentation so that my developer (me in a different hat) can remember how to put it all together!