The emerging field of action science is characterized by a diversity of theoretical and methodological approaches which share the basic functional belief that evolution has optimized cognitive systems to serve the demands of action. This book brings together the constitutive approaches of action science in a single source, covering the relationship of action to such cognitive functions as perception, attention, memory, and volition. Each chapter, written by a different scientist in the field, offers a tutorial-like description of a major line of inquiry. Considered as one unit, the chapters reflect a rapidly growing field, and provide a forum for comparison and possible integration of approaches. After discussing core questions about how actions are controlled and learned, the book considers ecological approaches to action science; neurocognitive approaches to action understanding and attention; developmental approaches to action science; social actions, including imitation and joint action; and the relationships between action and the conceptual system (grounded cognition) and between volition and action.