After living in Nepal and exploring Tibet and the Himalayas for more than a decade, photographer Hamid Sardar-Afkhami decided he would travel to outer Mongolia to document the nomadic tribes and their unique way of life. A scholar of Tibetan and Mongol languages who received his Ph.D. from Harvard University in Sanskrit and Tibetan Studies, Sardar was just the right person to capture the Dukha people, Mongolia's last nomadic reindeer herders. The Dukha are an ancient group of people of Turk...