Jack London, best known for his beloved dog tales, The Call of the Wild and White Fang, was a deeply committed progressive voice, and this anthology makes a good argument for refreshing his relevance as a polemicist. Much-published Paul Berman, an aspirant to similar progressive credentials, blurbs: “Jack London always knew how to bang a righteous drum of social indignation, and in The Radical Jack London he can make your heart pound, even today.”