This document provides an overview of microeconomics and macroeconomics. Microeconomics is defined as the study of individual decision making and the allocation of resources at the individual level. Macroeconomics examines the behavior of the overall economy, including metrics like gross national product, unemployment, and economic growth at the national level. The document outlines some key differences between microeconomics, which focuses on supply and demand and prices, and macroeconomics, which analyzes unemployment, inflation, and taxation at the aggregate level.