This report provides a comprehensive analysis of various business types, including micro, small, medium, and large businesses, along with their characteristics and examples. It explores sole trader, partnership, limited liability, public limited liability, and cooperative business structures. The report delves into different organizational structures, such as the flat structure adopted by Marks and Spencer, and how these structures impact business productivity and decision-making. Furthermore, it utilizes PESTLE analysis to determine the effects of political, economic, social, technological, legal, and environmental factors on business performance, using Marks and Spencer as a case study. The report concludes with a summary of the key findings and their implications for business operations and strategic planning.