In this book, David Graeber reveals that before money, there was debt. For over 5,000 years, humans used credit systems to trade goods, predating coins or cash. Graeber argues this era saw the division of society into debtors and creditors. He also shows how debates on debt and forgiveness shaped political revolts and influenced law and religion, with terms like "guilt" and "redemption" rooted in ancient disputes, affecting modern beliefs.