I won't say the book was bad but it covered zero new material for me. I was just really disappointed, a book titled the linux BIBLE i would have thought it was more detailed especially for how thick it is! I found the Wrox introdution to UNIX was far more help understanding both linux and unix and the differences concisely. This book tells you what the parts of linux are, how to get around the OS where to find things but it doesn't tell you how to use the tools, what output to expect, why you would use one tool over another, thats what I was looking for.