This document provides an overview of the key perspectives, fields, methods, and history of psychology. It discusses the biological, psychoanalytic, behavioral, humanistic, and cognitive perspectives. The major fields covered are experimental, biopsychology, developmental, social, industrial/organizational, educational, clinical, counseling, cross-cultural, forensic, and environmental psychology as well as psychiatry. Methods summarized include case studies, naturalistic observation, surveys, experiments, and correlation. The history outlines structuralism, functionalism, Gestalt psychology, psychodynamic, humanistic, behaviorist, and cognitive models.