Canadians will vote for a candidate from one of the political parties in their federal “riding,” or district. Whichever candidate gets the most votes in a riding will become a Member of Parliament (MP) in the House of Commons, and the party with the most MPs wins the election.

Canadians are voting whether to extend the Liberal Party’s decade in power or instead hand control to the Conservatives.

More than seven million Canadians have already cast early votes in a record turnout. Polls open on Monday starting at 7:00 EDT (12:00 BST). Here is what you need to know. Preliminary results will likely come in late on Monday night or early on Tuesday morning, local time.