This book is essentially a study guide aimed at college level students of International Relations, International Studies, and Political Science. Contained in it is a concise and straightforward look at popular Political Science theories written by eminent reseachers and scientists ranging from Realist, Neo Realist, Liberal, and Alternative perspectives. The theories are considered standard learning for all students and the book serves as a resouce guide to help students understand the main points (i.e. gist) of the various theories.