Which famous children's book series generated over $1 billion in merchandise sales through an exclusive retail partnership before the final book was even published?

Brand collaborations in the literary world have become increasingly strategic, with publishers and authors partnering with retailers to create unique merchandise that extends storytelling beyond the page. From limited-edition fashion items inspired by classic novels to specialty bookstore cafés themed after famous literary works, these collaborations represent an important revenue stream and marketing approach in publishing. Test your knowledge about these creative partnerships that have reshaped how readers engage with their favorite books and authors.

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Harry Potter (Scholastic/Warner Bros partnership)
Percy Jackson (Disney/Barnes & Noble partnership)
Hunger Games (Lionsgate/Amazon partnership)
Diary of a Wimpy Kid (Abrams/Target partnership)