Introduction to Networking: How the Internet Works

A great overview of how the Internet works. This book is concise, it should not be used as a reference guide to networking for sure, but gives a nice big picture understanding to those people who don't want to delve into the depths of the subject.

I think this book is especially useful for those web developers who don't know much about networking and want to understand how their applications fit in the big picture of a whole global network.

In short, if you want to know how the Internet works in a nutshell, what are the layers that our digital information goes through when we use Internet services, and what are the models that the architecture is based on, read it.