Which children's book series pioneered the use of synchronized global release events with midnight store openings, strict embargo agreements, and unprecedented security measures to prevent plot leaks?

The launch of a new book can be as meticulously planned as any tech product release. Major publishing houses employ sophisticated marketing strategies, from cover reveals and advance reader copies to elaborate launch events and publicity tours. This poll tests your knowledge about one of the most famous book launch campaigns in publishing history—one that changed how literary products reach the market.

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Harry Potter (starting with 'Order of the Phoenix')
The Chronicles of Narnia
A Series of Unfortunate Events
Percy Jackson & The Olympians