The book "External Debt and Nigeria's Economic Development" examines the challenges associated with external debt in Nigeria and its impact on the country's economic development. Despite its rich natural resources, Nigeria struggles to achieve sustainable economic growth, partly due to its high external debt burden. The author, Emmanuel O. Adeyi, employs both theoretical and empirical approaches to analyze the issues related to external debt overhang. The empirical analysis utilizes methods such as Two-Stage Least Squares (2SLS) estimation and tests for stationarity and cointegration to create a regression model. The book offers recommendations for comprehensive macroeconomic management to promote sustainable growth and avoid future debt crises.