Contract bridge or more commonly just bridge, is a trick-taking game using a standard 52 card deck of playing cards. It is played by four players in two competing partnerships, with partners sitting opposite each other around a table.
In Australia, bridge is run by the Australian Bridge Federation (ABF) and in Victoria by the Victorian Bridge Association (VBA).
The ABF has prepared two excellent 10 minute introductory videos titled New to Bridge? and Improve Your Bridge.