1. Berlin, I. (1969/1990). Four essays on liberty. Oxford University Press.
2. Birch, J., Burn, C., Schnell, A., Browning, H., & Crump, A. (2021). Review of the evidence of sentience in cephalopod molluscs and decapod crustaceans. LSE Consulting.
3. Painlessly Killing Predators
4. A Measure of Freedom