Which publishing phenomenon created unprecedented brand loyalty by releasing books with midnight launch parties, where readers would line up for hours and even dress as characters?

In the publishing world, reader loyalty is a prized asset that drives success for authors and publishing houses alike. This trivia question explores a fascinating example of how one publisher built an extraordinary level of brand loyalty through innovative marketing and consistent quality. Test your knowledge of this remarkable publishing phenomenon that transformed casual readers into passionate brand advocates and created a cultural touchstone in children's literature.

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Harry Potter series by Bloomsbury/Scholastic
The Hunger Games trilogy by Scholastic
Twilight saga by Little, Brown and Company
Percy Jackson series by Disney Hyperion