Jeffery Deal is a physician, anthropologist, inventor, and renowned speaker. His work as a tropical medicine specialist has taken him to South Sudan during its wars, Liberia during the Ebola pandemic, and dozens of other developing countries. He earned a master of arts in anthropology from the University of South Carolina and a doctorate of medicine from the Medical University of South Carolina. While a US naval officer, he completed a residency at Walter Reed Medical Center and later earned a diploma from the London School of Tropical Medicine as well as a fellowship in the Royal Society of Tropical Medicine.Dr. Deal has contributed to numerous professional journals and newspapers and has published two novels, Toccoa: Dark Secrets of a Small Georgia Town and The Mark, as well as an ethnography of the Dinka of South Sudan, A Land at the Centre of the World.