This document provides an overview and introduction to the textbook "Interactive Psychology: People in Perspective". It discusses that psychology is the scientific study of mind and behavior. The textbook uses learning tools like study units to break down chapters into subtopics and apply psychological knowledge to engage students in learning. It emphasizes the importance of thinking like a psychological scientist by being critical and considering multiple sources of evidence rather than absolute conclusions. It also discusses the brief history of psychology and how early approaches have merged into today's emphasis on research ethics and transparency. Popular psychology is distinguished from empirical psychological science and the importance of critical thinking is highlighted. Diversity of perspectives is important for fully understanding human behavior.