Hola amiga,
You missed out on a chance to learn my language here ;>)
Qué lastima!
Nice to see that you're posting a Dutch photo. It represents two of my favorite things: books and the color blue.
This cool concept is pretty normal in Holland, the last couple of years. In fact, there's one wooden cabinet like this at 200 metres or so from my parents' house in Gouda.
I must admit though that most people just put not that interesting / mainstream novels inside. They might take out the more interesting books though, haha.
Un abrazo,
Vincent