G. C. Field 
Political Theory [PDF ebook] 

First published in 1956, Political Theory explores the historical development of political ideas and analyses some basic concepts of contemporary political theory, including the notions of the State, of Sovereignty and the Law. The book is based on lectures in Political Theory given by the author, G. C. Field, in the universities at which he taught. It opens by considering the development of political ideas by providing an overview of the ideas current at the time of original publication in comparison to the ideas of earlier ages. It then progresses into a more detailed discussion of specific political theories. It will appeal to those with an interest in the history of political thought and developments in political theory.