Commercial space improvements and remondeling, located at Ponce de Leon, San Juan, in front of Ciudadela. Libros Ac focused on the integration of book and bistro into one space. The divider of space between the two programs is created by a curved bookshelf, the backdrop of the bookshelf is transparent in order to work as an elegant ever changin wall that its perception is defined by the book that are in display at the time.