Which groundbreaking augmented reality feature did Barnes & Noble introduce in 2019 that allows customers to explore book content before purchasing?

In the evolving world of literature retail, technology has transformed how readers discover and experience books before purchase. Augmented reality in particular has created innovative ways for bookstores to engage customers and bring stories to life. Test your knowledge about how modern bookstores are using AR technology to enhance the customer experience and drive sales in an increasingly digital market.

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BookSee AR - allowing customers to point their phones at book covers to see animated characters come to life
PageTurn VR - letting customers virtually flip through every page of a book using special in-store headsets
AuthorSpace - creating virtual author appearances where customers can ask questions to AI versions of writers
GenreScan - scanning customers' faces to algorithmically determine which book genres would best match their preferences