Help PDF

[Xpiral]

Is there any .pdf or some kind of text file with help for linux like a book or something about knoppix? free?

[Markus]

There's lots, you can just google around. Here's one I've bookmarked:
http://linux-newbie.sunsite.dk/lnag.pdf

[fingers99]

Amongst the most useful are the HOWTOs, Grokking the Gimp and rute.

All of these you can apt-get install if you have a HD install.

google is pretty handy too!