This document discusses the role of data visualization in business decision making. It begins by introducing data visualization and its importance in today's data-driven business landscape. It then reviews literature on the benefits of data visualization, including enhanced understanding, effective communication, insight generation, and timely decision making. The document also identifies best practices for effective data visualization based on the literature, such as clarity, relevance, interactivity, and accessibility. It provides examples of how companies in various industries use data visualization to inform strategic decisions. The key findings are that data visualization improves comprehension, communication, insight generation, and decision making speed through best practices like simplicity and consistency.