Economic development is an increase in per capita income and in changes towards modernization. It is in this lucid manner that this book will teach you economic development. It clearly explains the features of economic underdevelopment. They include low per capita income, low level of savings, low level of technology, low productivity, low literacy, and dependence on one or two export products. It analyzes how to plan an economy. It identifies the types of economic plan. It throws light on the problems of economic planning. It discusses the challenges of economic development. It identifies poverty as the first striking challenge of economic development and throws light on the causes and effects of poverty. It examines acquired immune deficiency syndrome as a challenge of economic development. It throws light on the causes and effects of acquired immune deficiency syndrome. It identifies corruption as a lethal challenge of economic development. It sheds light on the causes and effects of corruption. It explores brain drain as a serious challenge of economic development. It proffers the best solution to the high level of brain drain.