Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great Starting Point

Although this book is useful to both beginners and security administrators, it is written so beginners can get a great understanding of what hacking is about and how to protect against it. The examples are thorough and provide step-by-step screen shots as to what happens during a certain exploit. It also tells the counter measures for each attack therefore enabling you to combat such an attack.This book is a definate "must read" for anyone currently involved in or who wants to be involved in computer/network security.