Which retail layout innovation is credited with saving many independent bookstores by transforming them into 'third places' where customers spend significant time?

In the digital age, physical bookstores have had to reinvent themselves to survive against online retailers. Many successful bookstores have transformed from mere retail spaces into community hubs and experiential destinations. This poll explores one of the most influential retail layout innovations that helped revitalize the physical bookstore industry in the last two decades.

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The addition of in-store cafés and comfortable seating areas
Organizing books by color rather than by genre or author
Self-checkout kiosks to reduce wait times
Digital shelf labels that update prices in real-time