David W. Tschanz is a historian, epidemiologist and travel writer who lived in the Middle East from 1989-2012 where he worked for an oil company, taught, researched, wrote and learned.Convinced that "specialization is for insects," he has advanced degrees in history, public health and archaeology, as well as 9 computer certifications including an MCSE, MCDBA, and CIW.He has written over 1000 published articles on a wide variety of topics including infectious disease control, military affairs, demography, patch management, Kerberos security, product review, history, Middle East affairs and travel. Additionally he has authored or co-authored nine books, his most recent being "Petra: A Brief History" and "Cairo's Fortress on a Mountain."His work has appeared in Ahlan Wasahlan; Against the Odds; Aramco World; Archaeology; Battle Flag; C3i; California Liberty; Caravan; Cert Cities; Command; Desert Rambler; Dimensions; Gaya; Golden Falcon; Herbs for Health; Islam on Line; Line of Departure; Mensa Bulletin; MCP Magazine; Military History; Al Muftah; Odyssey; Redmond Magazine; Relevance; Sojourn; Sons of Texas Journal; Strategy & Tactics; StrategyPage; TCP Magazine, White Star Burma and Wild West. He is also author of many IT industry white papers.He also serves as editor of several international publications, including the military history journal Cry "Havoc!"; the Journal of Islamic Medical History, Makzan and Dragon's Breath. He was president and on the board of the Arabian Natural History Association for 18 years. He has spent several years as national historian of China Post 1 (American Legion) and Coordinator of the Military History Special Interest Group of American Mensa, Ltd.A well regarded speaker Dave has been the Anne Nicholson Guest Lecturer at Pinewood College; a speaker at the Croft Institute for International Studies at the University of Mississippi as well as other venues.