Try not to be self-centered. People answer not just for you, but for other readers. I wasn't referring to understanding the entire ignition system in your car, just how a coil works. It only takes a few wires to demonstrate that. Search "Faraday's Law of Induction" for more info. That is from the early 1800's. Once you prove the coil sparks, work your way up from there. The points replace your hand pulling the wire away. Not much more than that, other than how your wires route.