Audience
This book is for IT workers, system administrators, network administrators, operators, help desk personnel, and the many, many other similar job titles that can be found in the IT industry. It is written for people who are early in their career, but industry veterans will find these techniques to be equally useful. If you don't think you have time to read this book, you need this book.
This book is not for programmers. Beta readers told me that programmers should find this book extremely useful, but I feel that programmers have different issues and therefore deserve their own book. If you're a programmer, buy this book as a gift for the system administrator who supports you. If you happen to read it before it gets gift-wrapped, I won't tell.