Hi,
An IRC network like irc.freenode.net has to be accessed using an IRC client. You can use
mIRC on windows, or
irssi on linux.
To connect to the server, type "/server irc.freenode.net" in the server window.
Some other popular IRC servers are -
Undernt - irc.undernet.org
Efnet - irc.efnet.net
Channels like #ebooks or #bookz may exist on these servers from where you can get ebooks.