This book explores how blockchain is transforming the management of massive data. The book highlights the benefits of blockchain, such as security, transparency and decentralization, and how these features can solve critical big data challenges, including data confidentiality and integrity.The author analyzes real-world applications of blockchain in various sectors such as healthcare, finance and supply chain management, demonstrating improvements in efficiency and cost reduction. Through case studies and in-depth research, Kassou offers a global perspective on the transformative potential of blockchain to optimize Big Data management.The book also addresses the technical, regulatory and cultural challenges associated with blockchain adoption, highlighting the importance of developing a robust infrastructure and specialized skills. In conclusion, Kassou proposes a vision where blockchain and big data converge to create a more secure and efficient digital environment, opening up new perspectives for research and industry.