Which advertising slogan helped propel J.K. Rowling's debut Harry Potter book to unexpected success in the adult market?

The world of literature and publishing has seen some revolutionary advertising campaigns that transformed books into cultural phenomena. From clever slogans to groundbreaking marketing strategies, publishers have found innovative ways to capture readers' attention in an increasingly crowded marketplace. Test your knowledge about some of the most successful advertising techniques that helped turn books into bestsellers and literary classics into household names.

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"For adults who refuse to grow up" - created a dual marketing strategy that removed stigma of reading children's books
"The book that survived the ban" - leveraging controversy after religious groups called for boycotts
"From Edinburgh café to global phenomenon" - focusing on Rowling's rags-to-riches story
"The most magical book since The Chronicles of Narnia" - using comparison marketing to a beloved classic