This document provides an overview of ratio analysis. It defines ratio analysis as using ratios to analyze a company's financial statements and determine its financial soundness. Ratios establish mathematical relationships between accounting variables. Ratio analysis can be used to interpret individual ratios, groups of ratios, ratio trends, and compare ratios across companies. Key types of ratios include liquidity, profitability, turnover, and solvency ratios. The document also discusses the classification, advantages, and limitations of ratio analysis.