Motivation provides an overarching organizational scheme of how motivation (the inducement of action, feelings, and thought) leads to behavior from physiological, psychological, and environmental sources. Well-grounded in the history of the field, Motivation combines classic studies with current research, promoting the idea that motivation stems from physiological states, psychological motives, and environmental incentives and goals. The material draws on topics that are familiar to students while maintaining a conversational tone to sustain student interest.