Electronics can seem like a Herculean field in itself, especially because you usually do not have a ton of reference materials if you are pursuing some study of sorts on it.
Anyone interested in studying Electronics would know that we can safely divide the subject in two sections- Analog and Digital. So what are the basic differences between both of these?
Analog electronics usually deals in electric current which is in amps and voltages which are in volts and its value varies in certain time. With digital electronics there are two variables in a circuit to study the electrical circuits and voltages and these variables can be wither present or not during the apparatus operation.
Source: Electrodiction
So, what makes Electronics interesting is that it has PRACTICAL APPLICATION in every nook and corner of the studies. You crop up ideas and get to implement them with wires and gadgets. So, when you google or download PDF, go for digital Electronics videos tutorials than mere text. Diagrams and lectures are utmost important. Avoid lengthy discussions or over-explanation materials.

Best of luck !