This collection opens a dialogue between process philosophy and contemporary consciousness studies. Approaching consciousness from diverse disciplinary perspectives--philosophy, psychology, neuroscience, neuropathology, psychotherapy, biology, animal ethology, and physics--the contributors offer empirical and philosophical support for a model of consciousness inspired by the process philosophy of Alfred North Whitehead (1861-1947). Whitehead's model is developed in ways he could not have anticipated to show how it can advance current debates beyond well-known sticking points. This has trenchant consequences for epistemology and suggests fresh and promising new perspectives on such topics as the mind-body problem, the neurobiology of consciousness, animal consciousness, the evolution of consciousness, panpsychism, the unity of consciousness, epiphenomenalism, free will, and causation.