Werner Herzog has produced some of the most powerful, haunting, and memorable images ever captured on film. Both his fiction films and his documentaries address fundamental issues about nature, selfhood, and history in ways that engage with but also criticize and qualify the best philosophical thinking about these topics. In focusing on figures from Aguirre, Kasper Hauser, and Stroszek to Timothy Treadwell, Graham Dorrington, Dieter Dengler, and Walter Steiner, among many others, Herzog in...