Which revolutionary marketing strategy helped make 'Harry Potter and the Deathly Hallows' the fastest-selling book in history with 11 million copies sold in its first 24 hours?

The publishing industry has seen some remarkable product marketing campaigns that transformed books into cultural phenomena. From midnight release parties to innovative digital promotions, successful literary marketing has evolved dramatically in the digital age. Test your knowledge about some of the most impactful book marketing strategies that helped create bestsellers and literary sensations!

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Simultaneous global release at precisely the same moment worldwide (12:01 AM London time) with coordinated midnight launch parties
The first-ever augmented reality mobile app that allowed readers to unlock exclusive content by scanning book pages
A viral social media campaign where celebrities read the first chapter online, creating a 24-hour streaming event
Free digital copies given with purchase of the physical book, pioneering the bundled print/ebook model