Book excerpt: By introducing and explaining the intersection of two exciting and important areas of study, this landmark work unleashes their potential to address some of the most complex and globally relevant challenges of our time. In this unique handbook, experts team up to explain the many innovative ways psychology is being applied to promote social justice. The wide-ranging, three-volume work addresses such significant issues as social justice ideology and critical psychology, war and trauma, poverty and classism, environmental justice, and well-being and suffering. It showcases approaches for integrating social justice into psychology, and it examines psychology's application of social justice within special populations, such as sexual minorities, youth, women, disabled persons, prisoners, older adults, people of color, and many others. Chapter authors represent a diversity of perspectives, making the handbook an ideal resource for those who want information on a specific concern as well as for those looking for an introduction to the subject as a whole. Combining the practical with the theoretical, the work provides culturally sensitive tools that can effectively combat injustices locally and globally.