This book explores the frontier where technology meets business in 'Tech Fusion in Business and Society: Harnessing Big Data, IoT, and Sustainability.' This inaugural book of 'Studies in Systems, Decision and Control' unravels the impact of AI, blockchain, security, and more on industries and societies. This book dives into a curated collection of expert insights, peer-reviewed for academic rigor and practical relevance. It joins us in shaping a tech-driven future for meaningful change.