Chapter 0:What is electricity really?

The author starts this chapter by describing electricity in its most basic form, at the atomic level.  He then talks about how electricity works, what conducts electricity and what insulates it and why this all happens.  I imagine the author of this chapter as a fresh new teacher that is trying to be hip with his students and get them interested in science.  It is a very basic understanding of what goes on and it seems to be aimed at people that have absolutely no idea what electricity is, how it works, and what it's made of.  And because I have not take a science class in well over 2 years now, I found it refreshing to recall all of this information, but it seems to be a bit dumbed down for the actual target audience.