This major new text critically assesses the key political ideologies of the 20th century. The 1970s and 1980s witnessed a flowering of new and popular ideologies, such as feminism and ecologism, and a revival of others, notably liberalism. The upheavals of the early 1990s have initiated fresh debate amongst major thinkers on the nature of ideology, much of it however hostile or polemical. Modern Political Ideologies examines in an objective scholarly manner the evolution of key political ideologies and assesses their impact and development during the 20th century. This volume is essential reading for all students of politics, and indeed anyone who has an interest in current events and wishes to acquire a deeper understanding of the nature, scope and ambition of different ideologies.