LinuX Book

[C . J . Lawson]

Hi guys,
        I finally decided to buy a book on LinuX and guess what? There are so
many, I am at a loss for which one to choose (and  some are pricey too). Could
anyone out there point me to what is considered the 'defacto' definitive guide
(Advanced!!) to LinuX

Thanks 

Jonathan Lawson