Which renowned author created an innovative bookstore design featuring 'staff picks' cards that revolutionized personalized book recommendations in retail?

Many celebrated authors ventured beyond writing into the retail world, creating innovative shopping experiences or product lines. This poll tests your knowledge about the intersection of literary giants and their retail ventures. Can you identify which famous author pioneered which retail innovation?

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Ann Patchett, who opened Parnassus Books with a system of personalized recommendation cards that has since been widely adopted across independent bookstores
Stephen King, who launched a chain of horror-themed bookstores called 'Nightmares & Dreamscapes' with personalized recommendation systems
J.K. Rowling, who designed the original Flourish & Blotts bookstore concept for Universal Studios with interactive recommendation features
Neil Gaiman, who created a digital book recommendation algorithm called 'Neverwhere' that was later adapted for physical bookstore use