This book offers an integrated and multidisciplinary exploration of artificial intelligence, presenting its economic, legal, and societal implications through a uniquely cross-sectoral lens. Bringing together leading scholars and original research from multiple fields, it provides readers with a comprehensive understanding of how AI is reshaping decision-making, public administration, governance, markets, and human creativity. Its innovative approach lies in combining empirical evidence, theoretical frameworks, and policy analysis to address both opportunities and risks of AI in real-world systems. Designed for academics, policymakers, practitioners, and advanced students, the book serves as a practical and conceptual resource for understanding AI's transformative power. It is especially valuable for research, teaching, strategic planning, and the design of ethical and sustainable AI-driven policies.