Which book series' marketing campaign first pioneered the use of midnight release parties that became a global retail phenomenon, creating unprecedented pre-order sales and in-store events?

The book retail industry has evolved dramatically over the centuries, from small independent bookshops to massive chains and now digital marketplaces. Along the way, certain marketing innovations have transformed how literature is sold and consumed. This trivia question explores one of the most significant retail marketing campaigns that revolutionized book sales in the early 21st century.

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Harry Potter series
The Hunger Games trilogy
Twilight saga
A Song of Ice and Fire series