Parts of the illustrated world encyclopedia in color Includes volumes 8, 11, 13, 15, 15, 16, 17 Total 7 volumes 1992 Geneva edition Discusses the following topics in ancient historical and scientific eras considered the basis of cognitive development 1-History 2-Thought 3-Art 4-Social Affairs 5-Sports 6-Geography 7-Biology 8-Human Body 9-Zoology 10-Botany 11-Mathematics 12-Physics 13-Technology 14-Historical Figures Knowing that each volume specializes in different additions Also, one of the volumes includes historical information about the Kingdom of Saudi Arabia Price for value or quantity Delivery in person or shipping Payment cash or transfer Contact me if you find what suits you