This volume provides novel approaches to a variety of questions about ambivalence and the role it plays in our lives. As the contributions illustrate, ambivalence finds its way into a gamut of philosophical and psychological debates about rationality, skepticism, emotions, intentionality, racism, global justice, well-being, mindfulness, and intersubjectivity. These debates concern questions like: “Is ambivalence distinct from uncertainty?”, “Does ambivalence affect the way we respond to paradoxes?”, “How can two nations come to an agreement about nuclear disarmament?”, “Is ambivalence irrational when it frustrates effective action?”, “Why do people who have had training in law enforcement commit such heinous acts of violence?”, “How does mindfulness resolve ambivalence?”, and “Why isn’t valuing your interests and ends and taking them seriously sufficient for self-love?”