What are we exactly, when we are said to be our brain? This question leads Jan De Vos to examine the different metamorphoses of the brain: the educated brain, the material brain, the iconographic brain, the sexual brain, the celebrated brain and, finally, the political brain. This first book-length argument on neurologisation, which lays bare its lineage with psychologisation, should be taken seriously by psychologists, educationalists, sociologists, students of cultural studies, policy makers and, above all, neuroscientists themselves.