In the tradition of moral philosophy, long dominated by a rationalist paradigm, the idea of moral intuition has often been a source of embarrassment. How can the mind form a moral judgment within seconds, without any apparent reasoning? In the spirit of neuroethics, this book demystifies moral intuition by examining the mental and neural processes that generate such automatic evaluations. Addressed to specialists in philosophy, psychology, and AI ethics, the book systematically investigates three questions: how moral intuitions work, how they can improve, and how they can be implemented in artificial agents.