The 2-volume APA Handbook of Humanistic and Existential Psychology provides a comprehensive overview of the rich history, diverse theoretical perspectives, clinical and social applications, and important emerging issues and directions in the field. The chapters in this Handbook comprise a broad spectrum of coverage from the earliest foundations of humanistic and existential psychology to exciting future developments, including in-depth discussion of: Important theorists upon whose work the field was built and developed Aspects of human nature and existence, including creativity, freedom, social connectedness, authenticity, meaning making, and self-actualization The relationship of humanistic and existential psychology to other approaches, such as positive psychology, community psychology, and liberation psychology Multiculturalism, diversity, and social justice in relation to practice, research, and theoretical development within humanistic and existential psychology This Handbook is both a map of the current landscape of humanistic and existential psychology and a guide to where the field is headed. Researchers, practitioners, and students in psychology and related fields will learn how to incorporate a broad array of theoretical approaches use quantitative, qualitative, and participatory methodologies and apply the principles of humanistic and existential psychology to their practice, scholarship, and social advocacy.