Michael Leifer who died in 2001 was undisputedly the doyen of Southeast Asian Studies. He has left behind a very rich legacy of works on the Southeast Asian region - ASEAN, regional order and conflict, great power policies towards the region, maritime security in Southeast Asia, and studies of the domestic policies of individual Southeast Asian countries. He also addressed broader thematic issues such as nationalism and revolution in Southeast Asia, the decolonization process, and balance of power in the region. Much of Michael Leifer's work on the region has an enduring quality, which will have resonance and relevance to students and later generations of scholars and researchers. Considering the depth and extensive reach of his work on Southeast Asia, this volume of his selected works will capture the encyclopaedic range of his expertise on the region. This book is the first of its kind.