This document defines various measures of national income and production. It explains that national income is the total value of final goods and services produced in a country in one year. It also discusses the importance of national income as a key economic indicator. The document then describes Gross Domestic Product (GDP), Gross National Product (GNP), Net National Product (NNP), Net Domestic Product (NDP), personal income, disposable income, per capita income, real vs nominal GDP, the GDP deflator, and real vs nominal income.