Which marketing innovation helped propel 'Harry Potter and the Deathly Hallows' to sell 8.3 million copies within 24 hours of its 2007 release?

Test your knowledge about groundbreaking marketing campaigns in the publishing industry! Book marketing has evolved dramatically over the decades, with some campaigns revolutionizing how literature reaches audiences. From viral pre-release strategies to innovative cross-platform promotions, publishers have found increasingly creative ways to launch books into the cultural conversation. How well do you know these landmark marketing moments in literary history?

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Midnight release parties at bookstores worldwide with themed events and costumes
The first-ever book trailer aired during the Super Bowl
A free sample chapter distributed with every New York Times newspaper
A pioneering e-book release strategy with interactive digital elements