This document discusses various techniques for analyzing financial statements, including ratio analysis and common size statements. It provides examples of calculating different types of ratios to evaluate a company's liquidity, capital structure, profitability and efficiency. Ratios discussed include the current ratio, acid-test ratio, inventory turnover ratio, debtors turnover ratio, creditors turnover ratio, debt-equity ratio and interest coverage ratio. The document emphasizes that ratio analysis is a tool to assess the strengths, weaknesses, historical performance and current financial condition of a firm.