Javascript: Ultimate Guide to Javascript Programming (2016)
Chapter 1. Getting to Know Numbers, Operators, and Strings
Chapter 2. Discovering Variables
Chapter 3. Building and Running JavaScript
Computer Hacking: The Essential Hacking Guide for Beginners (2015)
Introduction. What is Hacking?
Chapter 1. Hacking and the Influence of Cyberpunk
Chapter 2. The Different Types of Hackers