This book provides a practical introduction to Business Intelligence (BI) and data-driven decision-making, with a focus on modern analytics tools such as Tableau. It explores the evolution of BI, data governance, and the architecture of data warehousing and reporting systems. The text guides readers through data preparation, modeling, visualization techniques, and interactive dashboard design to transform raw data into meaningful insights. It also highlights how organizations can use analytics for strategic decision-making, performance measurement, and modern tech recruitment processes. Designed for students, managers, and analytics professionals, the book demonstrates how business intelligence can drive smarter organizational strategies and competitive advantage in the digital economy.