The book "Alanine Aminotransferase Determining Etiology in Acute Pancreatitis" provides a comprehensive analysis of the role of alanine aminotransferase (ALT) in the diagnosis and differentiation of acute pancreatitis. It is outlined that elevated ALT levels strongly indicate biliary pancreatitis, thus playing a crucial role in distinguishing between biliary and non-biliary causes. These findings are particularly important as they allow for timely intervention to avoid serious consequences. The authors Binit Katuwal, Sneha Wagle, and Shailesh Simkhada present well-founded research that confirms the utility of ALT as a marker for predicting gallstones in acute pancreatitis. The book is aimed at professionals in the fields of medicine and nursing, providing valuable information for clinical practice.