I was hoping for great things from this book, but as a lot of the other reviewers have said very disappointing. To much time was spent on linux, which if you are going to be building a beowulf you would know, and even if you didn't there is a endless supply of linux knowledge on the net which greatly exceeds what is in this book.At the end of the day I DID build my own low-end beowulf, but sadly I can't say that any of the information that I needed was found in this book. It might have been there but the unorganized layout mad it impossible to find anything.