This is another example of mixing typography and fonts to form an object. In spanish the phrase that makes the form "No puedo vivir sin libros" is translated to english "I cant live without books". The main function of this shelve is to support and arange books, making and irony in form and function of the design.
Its also trying to transmit and idea that books are awesome and reading is great. Its just a fun way to arrange and decorate your room or your childrens room and at the same time encourage yourself and others to read more!