You can't learn Linux without using it.
I've come to that conclusion over more than a decade of teaching people to learn Linux. You can't just read a book; you can't just listen to a lecture. You need someone to guide you and you need to jump in and do it.
In 1999, Wiley published my Red Hat Linux Bible. The book's huge success gave me the opportunity to become a full-time, independent Linux author. For about a decade, I wrote dozens of Linux books and explored the best ways to explain Linux from the quiet of my small home office.
In 2008, I hit the road. I was hired by Red Hat, Inc., as a full-time instructor, teaching Linux to professional system administrators seeking Red Hat Certified Engineer (RHCE) certification. In my three years as a Linux instructor, I honed my teaching skills in front of live people whose Linux experience ranged from none to experienced professional.
In the previous edition, I turned my teaching experience into text to take a reader from someone who has never used Linux to someone with the skills to become a Linux professional. In this edition, I set out to extend those skills into the cloud. The focus of this ninth edition of the Linux Bible can be summed up in these ways: