The book titled "Purification and Characterization of Halophilic Bacterium Metabolites" written by N Manivannan is a comprehensive guide for researchers and students in the field of biotechnology and microbiology. The book explores the potential of halophilic bacteria in the production of bioactive compounds and their various applications.The first chapter of the book introduces the concept of halophilic bacteria and their unique characteristics. It then goes on to explain the various methods used for the isolation and purification of metabolites from halophilic bacteria. The subsequent chapters delve into the various applications of halophilic bacterial metabolites, including their use as antimicrobial agents, bioimaging agents, and in drug discovery.The book also discusses the potential of halophilic bacterial metabolites in the field of agriculture, where they can be used as biopesticides and biofertilizers. The final chapters of the book explore the economic and environmental benefits of using halophilic bacteria for the production of bioactive compounds, including reducing the use of synthetic chemicals and promoting sustainable development.Overall, "Purification and Characterization of Halophilic Bacterium Metabolites" is a highly informative and insightful book that sheds light on a relatively unexplored area of biotechnology. It is an essential read for anyone interested in microbial biotechnology, drug discovery, and sustainable agriculture.