With its signature focus on evolutionary psychology, "Motivation: Theory, Research, and Applications, 6/e, International Edition" reflects the latest developments from the field in its thorough coverage of the biological, behavioral, and cognitive explanations for human motivation. The book clearly presents the advantages and drawbacks to each of these explanations, allowing students to draw their own conclusions. Relevant and timely, the text helps readers understand the processes that activate their behavior by drawing examples from topics that interest students, including sleep, stress, eating disorders, helping behavior, emotion, and more. Extremely student friendly, the text includes numerous study aids to maximize learner success, while vivid graphic illustrations offer additional insight into key concepts. In addition, its unique thematic approach gives instructors ultimate flexibility.