Dr. Entezar received his Ph.D. from the University of Texas at Austin in applied linguistics, his M.A. from Columbia University Teachers College in teaching English as foreign language and his B.A from Kabul University in English. He has taught at Kabul University, Ibn Saud Islamic Univerisity, Riyadh, Saudi Arabia, the University of Nebraska at Omaha, Arkansas State, Jonesboro, Arkansas, and Fayetteville Community College, Fayetteville, North Carolina. He wrote the first Dari book, Farsi(Afghan Persian) for the US. Peace Corps in 1964. Subsequently, he wrote Intermediate Dari (1965) and Dari (1969). Professor Entezar has written numerous articles on the nature of language, bilingualism and language teaching methodology. He is the author of Afghanistan 101: Understanding Afghan Culture (2008).