**Fascism in Its Epoch**, also known in English as **The Three Faces of Fascism** (German: *Der Faschismus in seiner Epoche*), is a 1963 book by historian and philosopher Ernst Nolte. It is widely regarded as his magnum opus and a seminal work on the history of fascism. (Source: [Wikipedia](https://en. wikipedia. org/wiki/Fascism_in_Its_Epoch))