Introduction. Paul Feyerabend's Philosophy in the Twenty-First Century Jamie Shaw and Karim Bschir; 1. Feyerabend on Art and Science Chiara Ambrosio; 2. The Coherence of Feyerabend's Pluralist Realism Hasok Chang; 3. Feyerabend's General Theory of Scientific Change Hakob Barseghyan; 4. Feyerabend's Theoretical Pluralism: An Investigation of the Epistemic Value of False Theories K. Brad Wray; 5. Epistemological Anarchism Meets Epistemic Voluntarism: Feyerabend's Against Method and van Fraassen's The Empirical Stance Martin Kusch; 6. Feyerabend Never was an Eliminative Materialist: Feyerabend's Meta-Philosophy and the Mind-Body Problem Jamie Shaw; 7. Feyerabend's Reevaluation of Scientific Practice: Quantum Mechanics, Realism and Niels Bohr Daniel Kuby; 8. On Feyerabend, General Relativity, and 'Unreasonable' Universes J. B. Manchak; 9. Feyerabend, Science, and Scientism Ian James Kidd; 10. Matthew Brown - Against Expertise: A Lesson from Feyerabend's Science in a Free Society? Matthew Brown; 11. A Way Forward for Citizen Science: Taking Advice from a Madman Sarah M. Roe.