This book provides a comprehensive overview of Big Data and its analytics. It covers fundamental concepts related to Big Data, including its definition and challenges, and delves into the intricacies of Big Data analytics. The book offers in-depth explanations of topics such as the Hadoop Distributed File System (HDFS), Apache Pig scripting, clustering analysis, regression analysis, and various analytical theories and methods. It aims to serve as an educational resource for undergraduate and graduate students, researchers, and professionals interested in the field of data science and analytics, making it suitable for an academic level ranging from undergraduate courses to advanced graduate studies and research.