/diy/ - Do It Yourself

I'm seeing to become an electrician and I'm looking for some advice from people who are already electricians. One of the question I hear I'll be asked during the interview is "what do you think it is that electricians do?" Apparently people get this wrong a lot. Also, in the training center I went to, they have these old training books on display for decoration; I opened one up while I was waiting there and started reading through it. For the little that I read, it was very succinct and wasted no time; in the first few pages it explains volts, amps, ohms and coulombs. I'm wondering if I could get recommendations on any necessary/useful/similar reading I could do that would help me as a future electrician? Also, and this is perhaps the most important component of this post: what should I expect and prepare myself for during my education?

Any advice is appreciated. I'll take it all to heart as long as it's genuine.

>pic related is the book I was talking about