David C. Isby is a game designer, author, attorney, and national security consultant. He has written or edited 20 books and over 350 articles on national security, including three books on Afghanistan. He is also a former correspondent for Jane's Intelligence Review.
In 1970, he became the first employee of Poultron Press which went on to become Simulations Publications Inc. (SPI) where often worked as a game researcher and developer. He was also an editor of Strategy & Tactics.
Isby has testified before both House and Senate committees, has appeared on many television news programs, and has lectured at many military colleges. Since 1980 he has done extensive research on Afghanistan and was even condemned by the Soviet government for his writings on the subject as a "bourgeois falsifier of history" and "a CIA agent... with whom accounts will be settled."