Not sure If this is still relevant to the op given the timespan but I got the impression, rightly or wrongly that the op was pretty much a novice and some of the books mentioned here, like the brilliant Douglas Self books, aren’t really aimed at beginners. My suggestion would be to scour second hand book shops/charity shops/websites for some books on basic electronic servicing etc. I picked one up a few years ago for 50p that was brilliant, covering loads of topics from a novice point of view but with enough electrical and electronic principles and formulae that even for someone like myself who’s been dabbling since a teenager and worked for many years in a similar field found it an interesting read. I’d have to dig the book out but I remember picking up a few basically just to flick through and at charity shop prices they were real bargains.
The reason I say this is as a young kid going in Maplin and buying the Babini electronics books I still found the whole thing a big learning curve, especially some of the terminology. I still have those Babini books on my shelf and I still refer to them now for some formulae and examples and they were aimed squarely at the beginner.
If the op is reading this don’t let us put you off! Electronics is a fascinating subject that’s constantly pushing forward and can be such a rewarding hobby and topic. Just play safe!!