Psychology continues to be one of the most popular fields of study at colleges and universities the world over, and Psychology offers a comprehensive overview of the historical, methodological, and conceptual core of modern psychology. This textbook enables students to gain foundational knowledge of psychological investigation, exploring both the biological basis and mental processes underlying our thoughts and behaviours. Officially endorsed by the British Psychological Society, this book covers topics ranging from biological, cognitive and developmental psychology to the psychology of social interactions, psychopathology and mental health treatments. Each chapter provides detailed examination of essential topics, chapter summaries, real-world case studies, descriptions of research methods, and interactive learning activities to strengthen student comprehension and retention. This textbook offers a wealth of supplementary material for instructors of introductory and advanced undergraduate courses in psychology. An instructor's manual includes lecture outlines, classroom discussion topics, homework assignments and test bank questions, while online access to additional digital content provides a complete resource to facilitate effective teaching and learning.