God and the state. With a New Intrpduction and Index of Persons by Paul Avrich

Most colorful anarchist explains philosophy of history, oppression by organized religion, etc. Mind-opening.

A colorful, charismatic personality, violent, ebullient, and energetic, Bakunin was one of two poles between which 19th and early 20th-century anarchism was formed. Although it was never finished, GOD AND THE STATE, his only major work, is the torso of a giant. A basic anarchist and radical document for generations, this book makes one of the clearest statements of the anarchist philosophy of history: religion by its nature is an impoverishment, enslavement, and annihilation of humanity.