I heard that bookstores and drugstores are about to limit the use of plastic. We don't need to talk about its profound significance. Let's take a look at the Livraria da Vila in Sao Paulo, Brazil. This bookstore was designed by the local architect Isay Weinfeld. Its greatest feature is the 5 revolving doors filled with various books. They not only serve as display windows but also save space, and more importantly, they leave a deep impression. In addition, its interior design is also quite wonderful.