Green Political Thought by Andrew Dobson offers an impressively clear and thoughtful introduction to green ideas and to the aims and strategies of the green movement. The book has been revised and updated since its original publication in 1990 to take account of responses to the arguments of the first three editions. Dobson argues forcefully that ecologism should be considered as a distinct political ideology. He discusses the relationship between ecologism and other ideologies, notably socialism and feminism, the distinction between radical and reformist green traditions and how green social change might be brought about.