The Oxford Handbook of Positive Psychology is the seminal reference in the field of positive psychology, which continues to transcend the boundaries of academia to capture the imagination of the general public. Almost 20 years after the first publication of this groundbreaking reference, this new third edition showcases how positive psychology is thriving in diverse contexts and fields of psychology. Consisting of 68 chapters of the most current theory and research, this updated handbook provides an unparalleled cross-disciplinary look at positive psychology from diverse fields and all branches of psychology, including social, clinical, personality, counseling, health, school, and developmental psychology. Several new chapters are included which highlight the latest research on positive psychology and neuroscience, as well as growing areas for applications of positive psychology.

C.R. Snyder was a Professor of Psychology and the M. Erik Wright Distinguished Professor of Clinical Psychology in the Department of Psychology at the University of Kansas, Lawrence. His theories pertained to how people react to personal feedback, the human need for uniqueness, the ubiquitous drive to excuse transgressions, and the hope motive. Throughout his career, he received 27 teaching awards at the university, state, and national level, and 31 research awards, including the 2002 Balfour Jeffrey Award for Research Achievement in Humanities and Social Science and the 2001 Guilford Press Award for Pioneering Scholarly Contributions in Clinical/Social/Personality Psychology. He passed away in 2006.

Shane J. Lopez was Senior Scientist in Residence at Gallup and Research Director for the Clifton Strengths Institute. He published and edited numerous books throughout his career, including Positive Psychology: The Scientific and Practical Explorations of Human Strengths, The Oxford Handbook of Positive Psychology, Positive Psychological Assessment: A Handbook of Models and Measures, Positive Psychology: Exploring the Best in People, The Encyclopedia of Positive Psychology, and The Psychology of Courage: Modern Research on an Ancient Virtue. He was a fellow of the American Psychological Association and the International Positive Psychology Association. He passed away in 2016.

Lisa M. Edwards is Full Professor in the Counselor Education and Counseling Psychology department at Marquette University in Milwaukee, Wisconsin. She received her masters and doctorate in counseling psychology at the University of Kansas and completed a research postdoctoral fellowship at the University of Notre Dame. A licensed psychologist with expertise in multiculturalism and positive psychology, Edwards currently teaches, conducts research, mentors graduate students and directs the master's programs in her department. Edwards has written numerous articles, chapters and books about the intersection of positive psychology and culture, and her current research focuses on the perinatal mental health among Latinx mothers.

Susana C. Marques is a Researcher at the University of Oxford, England. Much of her research focuses on key psycho-social resources and how they can be used to help individuals, groups and organizations flourish. She previously earned her PhD at Porto University, Portugal where she coordinated the subject of Positive Psychology, supervised master, doctoral and post-doctoral researchers, and worked as a full member of the Center of Psychology. Marques has written numerous articles, chapters, and books in positive psychology, especially focused on hope.