This document discusses how the building blocks of traditional BI, specifically data warehouses, OLAP cubes, reporting systems, and manual data processes, have impacted and defined the design, structure, and operationalization of today's BI ecosystems. Consisting of 15 substantive chapters, the book discusses the adoption of legacy methods—along with refurbishing and reimagining them with intelligent automation, real-time analytics, cloud-native BI, and AI-based augmented decision-making systems. This document is not just a document of the past; it is also a document for the future—demonstrating new models for businesses, IT infrastructures, and frameworks for decision-making. It spans from traditional data-centric approaches to agile, insight-generating approaches for modern BI applications.