Which retail innovation, introduced by Barnes & Noble in the 1990s, fundamentally changed the bookstore experience and was widely copied across the industry?

The bookselling industry has undergone dramatic transformations in recent decades. From small independent bookstores to massive chains to digital marketplaces, the way literature reaches consumers continues to evolve. This poll tests your knowledge of innovative retail strategies that have shaped how we discover and purchase books in the modern market. Do you know which revolutionary retail approach changed the bookselling landscape forever?

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The "bookstore café" concept with in-store coffee shops and comfortable seating areas
The "subscribe and save" monthly book delivery service
The "virtual shelf" digital kiosk system for ordering out-of-stock titles
The "read before you buy" program allowing customers to read entire books in-store