BOSTON — The world is coming to Pittsburgh. Twenty countries (well, if you count the European Union as a single entity) and 20 delegations. That's a lot of names, faces and political priorities to keep straight.

But don't worry. Here's our interactive guide to surviving the G20 summit, put together by GlobalPost's well-informed correspondents in the field.

And, yes, this will be on the quiz.

http://www.globalpost.com/dispatch/commerce/090918/g20-survival-guide