Whether this idea exists now in Switzerland, we know not, but it seems like an extraordinarily super thing to do : there are out-of-date telephone boxes placed at strategic places in our communities here in France, which serve as book exchanges.
People are free to take and leave unwanted books or DVDs on an ad hoc and free basis, based on trust. There is one such at the Embarcadere in Evian and another one opposite the Chateau in Lugrin.
Today we put in two English book and a DVD, but were not lucky enough to find any books to our liking. No problem though, we will go again in a few days and have another look