Daniel Martin Varisco is research professor at Qatar University and president of the American Institute for Yemeni Studies. He is the editor and translator of several Arabic texts, including Medieval Agriculture and Islamic Science: The Almanac of a Yemeni Sultan.

Daniel Martin Varisco is a research professor at Qatar University and president of the American Institute for Yemeni Studies. He is the author of Islam Obscured (Palgrave, 2005); and the translator of Medieval Agriculture and Islamic Science (University of Washington Press, 1994).