Introductory texts?

Samuel }slund
Mon Nov 5 19:09:01 2001


I am going to distribute GnuPG with a (non-free) application.
Can someone point me to a good, short introductory text about Free
software to include with the distribution? I'm talking advocacy here but I
do not want it to be obvious...

I am also looking for the same kind of introduction to public key
encryption and signing.

Any ideas?