I agree. I wish I had good book on basic theory; if you nail understanding the bi-directional ac to dc by bridge rectifier and opposing phases of ac are a kin to dc+ and dc-, and electricity flows kinda like water, amps and volts are pressure and flow(tube size), always filling/following the easiest path(s) to "ground/common/return", the rest comes pretty easy really. Components kinda act as valves, manidfolds, or other modifier to the flow.
A schematic is kinda like reading plumbing blueprints imo.
For a fast refresher on ac I kinda like Mike in Lionel's YouTube video on "phasing two or more tranformer's to be used together".
