This document is a guide to using the "National Security Series", which consists of seven books designed for teaching about national security issues in high school social studies classes. Five of the series books contain lessons designed to supplement specific courses by relating national security issues to U.S. government, U.S. history, economics, world geography, and world history. The other two books feature, respectively, strategies for teaching about national security, and basic concepts of national security as an academic field. The guide outlines several ways to integrate the seven books in the series. Each of its five sections suggests additional ways to use the lessons of the series books in the classroom. Subjects of the five sections are: (1) cross references by course; (2) instructional strategies; (3) areas of the world; (4) topics in international politics; and (5) national and international security concepts. (DB)