Quiz: How Much Do You Know About NYFW?

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Today marks the first official day of Fashion Week. But before you read up on what shows are the most important this season and when all the livestreams are, you might want a basic refresher on what, exactly, it's all about.

E! Style Collective polled a bunch of insiders — including Racked LA's editor Natalie Alcala — to test their fashion week knowledge. Check out the video above, and head here to read more.