Librinfesta is an exhibition held in Alessandria (Italy) to encourage schoolchildren (especially the youngest) to book reading. Among its various events, to celebrate the International Year of Crystallography, Dr M. Milanesio, Dr G. Croce and Dr E. Conterosito of the Università del Piemonte Orientale organized some activities for children about the fascinating relations among crystals, symmetry, order, light, molecules and real-life objects.