Welcome to the resource page where you can find loads of different resources to help you understand ethical hacking!
Hacking: The Art of Exploitation, 2nd Edition
The Basics of Hacking and Penetration Testing: Ethical Hacking and Penetration Testing Made Easy
The Web Application Hacker's Handbook: Finding and Exploiting Security Flaws
Penetration Testing: A Hands-On Introduction to Hacking
The Hacker Playbook 2: Practical Guide To Penetration Testing