This edited collection testifies to the fact that the animal liberation movement is now entering its political phase, after a period dominated by ethical approaches that undermined the paradigm of human supremacy and demanded justice for nonhuman beings. The contributors of this book collectively confront and take on questions of social transformation, guided by the idea that philosophy has an important role to play even at such a new level. They start from such diverse perspectives as critical theory, left liberalism, and biopolitical thought. The result is an articulated picture in which, beyond any principled divergence, it is possible to detect the emergence of a relevant set of shared political preoccupations. This exploration of those offers fresh theoretical insights and suggestions for praxis.