In Bonn, Germany, I noticed a bookcase full of books in the public park where I run, with a young woman removing one book and returning another. These are used books that make up essentially a free voluntary lending library.
Freakonomics
In Bonn, Germany, I noticed a bookcase full of books in the public park where I run, with a young woman removing one book and returning another. These are used books that make up essentially a free voluntary lending library.
Freakonomics
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