electronics is much the same as central heating plumbing, water/electricity goes faster/slower, stops, splits, gets stored, drained out, is pumped higher, sometimes it's noisy. you can go a long way with just knowing that V=IR, and how to use a multimeter boolean logic is just traffic rules - wait until green, go when the other lane is going, filter in turn, stop on red programming is just a list of chores - get out of bed, clean teeth for 2 minutes, put on red jumper, sort laundry, write shopping list, walk dog until bored, repeat. Programmers don't know anything either, they just cut n paste code from stackoverflow until it compiles without errors :D Equally most basic electronics is just copying someone else's device application note and not making any silly wiring errors. Youtube is great for this That book is all I've ever used, the rest is just experience. Not counting all the text books at Uni, but very little of that was any practical use until much later