Modern Open Modular Bookcase for Books, Binders, Toys, Gadgets, and Decorations The biggest advantage of the FIESTA 4P bookcase is its modularity: the possibility to create many configurations by putting together several pieces of the Fiesta 4P bookcase. The furniture was created based on the use of strong and solid laminated board. Edging - finished with ABS plastic (characterized by high mechanical and chemical resistance).