I've been reading Eric Hobsbawm's book "The Age of Extremes: The Short Twentieth Century 1914-1991" and wonder, what other similar books worth the effort there are.
I am interested in works by authors with different perspectives and agendas, say, conservative, liberal, anarchist, Marxist, libertarian socialist and so on (but not propaganda).
Try Dark Century by Mark Mazower, Postwar by Tony Judt (second half of century only), and Ian Kershaw’s two volumes entitled To Hell and Back and Rollercoaster. I haven’t read Rollercoaster yet, so I only give it based on Kershaw’s reputation and the first book.