The book "Metabolomics" provides a comprehensive introduction to the emerging field of metabolomics, which studies the complete collection of metabolites in a cell. These metabolites are the non-genetically encoded substrates, intermediates, and end products of metabolic pathways that are crucial for understanding cellular processes. Given the growing demand for quantitative identification of the metabolome and the analysis of how metabolites are transported through the metabolic network, metabolomics has established itself as an important complementary technology to other global measurements. The book brings together the latest findings and presents current experimental methods, analytical techniques, and standardization practices in this field. It offers valuable insights into the principles and strategies that underpin metabolomics and highlights its significance in drug discovery, development, and systems biology.