Which book's 2007 launch featured the most expensive marketing campaign in publishing history at that time, with over $20 million spent on promotion and special midnight release events at bookstores worldwide?

The world of literature has seen some remarkable product launches that transformed reading culture and created publishing phenomena. From midnight release parties to unprecedented marketing campaigns, book launches have evolved into cultural events that rival those of tech products. Test your knowledge about some of the most significant book launch strategies and their impact on literary history and consumer behavior.

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Harry Potter and the Deathly Hallows by J.K. Rowling
The Lost Symbol by Dan Brown
Breaking Dawn by Stephenie Meyer
A Dance with Dragons by George R.R. Martin