This was the presentation and exhibition of the book Pez de Plata rBarcelona: Reflect, Recycle, Respond in the Contemporary Cultural Center of Barcelona's lobby.  The book is a work that reflects, through 24 initiatives for social and environmental responsibility, a commitment of Barcelona to make the town more sustainable and livable. The book lays out the projects of organizations and companies working to address the major challenges of the urban environment, while serving as a stimulus for new initiatives on responsibility, social commitment and environmental conservation.