A balanced and informative e-book on Business Intelligence. Starting from the history of BI, it proceeds to tell about its components, various tools, technologies, and applications. It also discusses BI's role in decision-making, its implementation, interrelation with Big Data, and AI. Towards the end, it forecasts trends in Business Intelligence and its future significance. Hence, it offers an extensive understanding of BI for practitioners, as well as, for those new to this subject.