An Introduction to Psychological Science, 3rd Canadian Edition by Mark Krause, Daniel Corts, and Stephen C. Smith introduces psychology as a modern scientific discipline while emphasizing the development of scientific literacy and critical thinking. The book examines how psychologists study behavior, thought, and experience through research methods and evidence-based reasoning. Major topics include biological psychology, sensation and perception, consciousness, learning, memory, thought and language, intelligence, lifespan development, motivation and emotion, personality, social psychology, health and stress, psychological disorders, and therapy. Throughout the text, research findings are connected with everyday experiences and contemporary issues to help students evaluate psychological claims and understand how scientific evidence is produced and interpreted. Designed primarily for introductory university psychology courses, the book provides a broad foundation for further study in psychology and related behavioral sciences.