The American Psychological Association (APA) is a professional organization representing psychologists in the United States. Founded in 1892, it aims to advance the field of psychology through research, education, and practice. The APA publishes numerous journals and books, providing resources for both professionals and the public. In addition to promoting psychological science, the APA sets ethical guidelines for psychologists and offers accreditation for psychology programs. It also advocates for mental health policies and provides resources for mental health professionals, educators, and students, contributing to the overall understanding of human behavior and mental processes.