In the IoT driven Big Data world, the traditional SQL databases are found to be inadequate. Hence, the concept of NoSQL databases is drawing the attention of Researchers, Practitioners and Academicians. Clusters and Clouds of commodity servers are being prescribed to Storage of Big Data to squeeze out actionable insights interactively and instantaneously. These specially crafted databases (NoSQL) are intrinsically designed to meet the huge data Storage, Processing and Analysis requirements that are the essence of the Big Data world. A variety of NoSQL databases with different features and functionalities are hitting the market to deal effectively with data-intensive analytics and applications. This book, in 25 Chapters, brings forth information regarding NoSQL databases to database Professionals, Academia and Researchers across the world. Salient features of the book are: Chapters on Hadoop Ecosystem Tools & Algorithm, Chapters on Handling Biological Data & Scalable Record Linkage, Technique for NoSQL Databases Using GPGPU, Chapters on NoSQL Security, 10 Hands On Chapters on NoSQL database such as Oracle NoSQL, MongoDB, Aerospike, Neo4J and Cassandra contributed by IT professionals from reputed organizations with relevant download links and installation steps. Book jacket.