This special issue of ARAMAZD presents a collection of papers dedicated to Ruben S. Badalyan, a leading specialist in prehistoric archaeology of the Cuacasus region. Born September 23, 1957 in Yerevan, he obtained his Master of Arts in History from Yerevan State University in 1979. Upon completion of his studies, he began working at the Institute of Archaeology and Ethnography (IAE) of the Academy of Sciences of the Armenian SSR and in 2007 he was appointed as the Head of the Department of Early Archaeology of the IAE NAS RA, a role he continues to perform to date.