20 Things to Learn about the Web

This 20 Things I Learned about Browsers and the Web is an interesting digital book created by the Chrome team, that provides insight regarding how the internet, the web and browsers work.

Unlike many, it's all written in an easy to understand language, accessible to all.
In its pages you'll get to learn about TCP/IP, DNS, Browser cookies, HTML5, javascript, AJAX, as well as grow aware of common security risks like phishing.

Definitely worth a read.