Diatom Cultivation for Biofuel, Food, and High-Value Products covers the scientific, economic, and practical aspects of using diatoms for multiple purposes. This book is an integrated approach to diatom cultivation, including discussions on techniques, harvesting methods, and innovative technologies. Diatom research has spawned more interest in biofuel production, serving as smart containers for biosensing pollutants and components of interest when integrated with different nanomaterials. A unique set of features and topics about diatom products are discussed in this 20-chapter book. It implements an integrated approach to diatom cultivation and includes discussions on cultivation techniques. It showcases the diversity of high-value products that can be derived from diatoms, such as pigments, antioxidants, and other bioactive compounds. Furthermore, it discusses the prospects of diatom cultivation and looks into ongoing research about potential emerging applications in the fields of biofuel, food, and high-value products.