Does Ubuntu has a manual?

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----- Original Message ----- 
From: "Dennis Kaarsemaker" <dennis at kaarsemaker.net>

>> http://ubuntuguid.org/ (slightly outdated since it's for 5.04)

>And it's a good thing to read if you want to break your system...

I used this guide for Hoary. Should this be avoided? 
It seemed like a good resource. Could you explain?

Thanks for all your contributions to this list. 

b