Liver is an integral part of the process of metabolism. It helps in the preservation and regulation of the lipid and glucose levels in the body, as well as in energy metabolism. The most common metabolic diseases which can affect the liver are Wilson disease, hereditary hemochromatosis, and Alpha-I antitrypsin deficiency (AATD). Some of the other types of disorders which affect the liver are infections, immune system issues, cancers, and heritable conditions. One of the upcoming methods of study which is used to study the cell metabolism within the liver is metabolomics. It refers to the scientific study of chemical processes involving metabolites, the small molecule substrates, intermediates, and products of cell metabolism. Metabolomics has a very high potential to detect biomarker candidates for the prospective advancement of new therapeutics. The book aims to shed light on some of the unexplored aspects of liver metabolism and the recent researches in this field with respect to liver diseases. It will provide comprehensive knowledge to both medical students and professionals.