Raymond Aron is an exceptional figure among twentiethcentury sociological and political thinkers. The book focuses on the sociological work of this author of the century who analyzed his age both in its grandscale political and socioeconomic traits and in the complex social ramifications of its daytoday life. Aron experts from a total of seven countries examine Arons sociology in detail starting with his road from philosophy to sociology not least under the impression of the Great Depressio