Money decisions are rarely as rational as they seem. This book examines the psychological patterns that shape how you earn, spend, save, and invest, drawing on behavioral research to explain why financial choices often diverge from logic. Generated by artificial intelligence, this book brings together established concepts in behavioral economics and financial psychology to offer a clear, structured introduction to the subject. You will learn how emotions such as fear and overconfidence influence financial behavior, why habits and mental shortcuts affect spending and saving, and how attitudes toward risk develop over time. The book also explores the relationship between money and personal well-being, offering context rather than prescriptions. Written for readers seeking a grounded understanding of financial behavior, it presents information plainly, without exaggerated claims about guaranteed outcomes or quick solutions.