Hematology is a branch of medicine. It studies the diseases of blood along with their causes, treatment, prevention and prognosis. Some common blood diseases are blood clots, lymphoma, hemophilia, leukemia, among others. Hematopathologists are pathologists whose expertise lies in the diagnosis of hematological diseases. Blood clotting tests, Coombs test, radioallergosorbent test, Kleihauer–Betke test, live blood analysis, etc. are some of the commonly performed tests to evaluate blood diseases. This book is a valuable compilation of topics, ranging from the basic to the most complex advancements in the field of hematology. It aims to present researches that have transformed this discipline and aided its advancement. This book is a vital tool for all researching or studying hematology as it gives incredible insights into emerging trends and concepts.