"In Emanuel Adler's distinctive constructivist approach to International Relations theory, international practices evolve in tandem with collective knowledge of the material and social worlds. This book - a selection of his journal publications, a substantial new introduction and three previously unpublished articles - points IR constructivism in a novel direction, characterized as 'communitarian'." "This book will be of interest to students and scholars in International Relations theory and particularly those interested in constructivism."--Jacket.