**Big Data Technologies** is a comprehensive guide that explores the vast landscape of big data, covering its fundamental concepts, tools, and applications. The book delves into data storage, processing frameworks, and analytics techniques, providing insights into technologies such as Hadoop, Spark, NoSQL databases, and cloud-based solutions. It also discusses real-world applications across industries, including healthcare, finance, and e-commerce. Designed for professionals, researchers, and students, this book offers a practical understanding of how big data technologies drive decision-making and innovation in the digital era.