This book articulates and defends an original account of the concept of care. The definition of care that is put forward describes acts of care as those which successfully promote some or all of the conditions necessary for another's flourishing, for that other's own sake. Having put forward an account of care, the book moves on to explore other questions relating to the practice of care, focusing particularly on the issues of paternalism and partialism. In formulating a definition of care, the book draws on work from various philosophical traditions including the Ethics of Care, neo-Aristotelianism and Practice Theory. The book is intended for theorists and practitioners alike and those who find themselves grappling with the question of 'What does it mean to care?'