Which innovative marketing strategy, first widely used for 'Harry Potter and the Half-Blood Prince' in 2005, revolutionized book launches and is now standard practice for major literary releases?

In the competitive world of publishing, marketing strategies can make or break a book's success. From the traditional to the innovative, publishers and authors employ various techniques to capture reader attention and drive sales. This trivia question explores a revolutionary marketing approach that changed how books reach mainstream audiences. Test your knowledge about the business side of literature!

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Synchronized global midnight release parties
Author virtual reality reading experiences
Blockchain-based limited edition digital copies
AI-generated personalized book recommendations