Using Irssi

Strangely I couldn't find a simple "howto" article on using Irssi except for this

http://carina.org.uk/screenirssi.shtml

# Connect to irc server
/connect irc.freenode.net

# Joining a channel
/join #linuxnus

# Parting a channel
/part

# Change nick
/nick 

# Highlight keywords
/hilight 

# Set away message
/away 

# Cancel away status
/away

# Send private message
/msg  

# Open up private chatroom
/query 

# Closing windows
/wc

# Disconnect from server
/disconnect

# Exit irssi
/exit