This document outlines key factors to consider when conducting an industry analysis. It discusses how industries can be classified using Standard Industrial Classification (SIC) codes which group industries by a four-digit code. Industries are also classified based on how they react to economic cycles, being categorized as growth, cyclical, defensive, or cyclical growth. The document then lists several specific factors that are important to analyze for any given industry, including past sales and earnings performance, permanence, government attitude, labor conditions, and competitive conditions within the industry.