Most books on post-war political philosophy focus on Rawls only: this books includes a thorough introduction to topics and thinkers often omitted, such as Hannah Arendt and Karl Popper on totalitarianism
Alan Haworth is already well-known for his excellent introduction to political philosophy, Understanding the Political Philosophers (second edition, 2912, Routledge)
Blends analysis of key thinkers and key concepts and themes, whereas most books concentrate on one or the other