I'm quite interested in electronics, circuits, etc... after my brief introduction to them in Physics class. I'd really like to take the time, as a hobby, to learn how to design and create circuits that will perform simple tasks --> eventually graduating to more difficult design. Does anybody have suggestions about what I should do to learn this? Are there any good books available that are must reads? Would a class at a university be useful in this regard? What's the best strategy for learning circuits/electrical engineering as a hobby? Thanks for any advice!