I've been installing, programming and troubleshooting Linux and Unix systems for more than 25 years. I have the certifications and the scars, I've been there and done that. This book is a brain dump of what I know about troubleshooting Unix and Linux.
This is NOT a "how-to" book, not a rehash of problems you can easily find with a Google search. You don't need a book for answers you can find in G
Self employment is also the best path to personal happiness - controlling your own destiny, setting your own goals, working at your choice of times and at your level of effort - these are the things that will truly bring happiness.
Why should someone you may not even know determine if you get a paycheck next week? Why should the needs of a faceless corporation determine your happiness?