Which marketing innovation is credited with transforming J.K. Rowling's 'Harry Potter' series from a modestly successful children's book to a global publishing phenomenon?

The publishing industry has seen revolutionary marketing strategies that transformed how books reach readers. From traditional publicity tours to innovative digital campaigns, publishers have continually adapted their approaches to connect authors with audiences. Test your knowledge about game-changing marketing techniques that helped certain books become cultural phenomena and bestsellers against the odds.

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The midnight release party concept, which created event-based retail experiences around book launches
The first-ever author website with interactive content that expanded the fictional universe
A revolutionary subscription model that delivered each new book automatically to previous buyers
The first major cross-promotion deal with a fast-food chain that included book-themed toys