During the Upper Paleolithic human groups created various art forms such as paintings and engravings of animals and signs on the walls of caves and stone plaques. In addition, they decorated bone tools and various types of personal ornaments. Cova del Parpalló (Gandia) has provided an outstanding collection of over 5,000 engraved and painted stone plaques that reflect the evolution of techniques and themes specific to these Upper Paleolithic societies between 25,000 and 10,000 years before present.