This book doesn't even come close to its title. While there is some useful information, it appears to be obvious that this book was slapped together in a rush. Chapter 18 ends abruptly. Chapters 19, 20 don't even exist - in fact based on the table of contents pages 354-403 are missing.And don't bother trying to find these pages on the "companion" book site. They don't exist there. You have to beg the publisher to get a copy.Honestly, not worth the time - try downloading a free IBM Redbook instead.