Two books: 1) A Pocket Guide to Vietnam. The first book is an updated pocket guide to Vietnam published by the Defense Department. It serves as a general guide for servicemen on the people, history, culture, geography, language and military forces in Vietnam. 2) An Introduction to Vietnam. The second book is an introduction to the history, politics, foreign relations, economy, education, intellectual and artistic expression, and religion of Vietnam. Published in 1969 by the Vietnam Council on Foreign Relations.