What are some good books to read if you want to go into networking/cybersecurity

Hey, first time posting here. I hope this is allowed.

I am taking some networking classes right now after switching out of programming. I'm taking a Network+ class and a CWNA Wireless class, but these two classes are the only familiarity I have with networking.

I want to expand my knowledge base over the summer and learn some of the basics of the profession. Also I am planning on trying to get some sort of job with computer repair, so maybe an interesting book about how computers work. There are so many books out there, I just want to know which ones are worth a read for a total rookie. Next semester I am taking:

Intro to Security

Intro to UNIX

A Windows 7 class (mandatory)

Computer repair/maintenance