Hematology is the study of blood and blood disorders. It encompasses a wide range of topics including the physiology of blood cells, the mechanisms of blood clotting, and the diagnosis and treatment of various blood diseases. Hematology plays a vital role in healthcare as it involves the evaluation and management of conditions such as anemia, leukemia, lymphoma and bleeding disorders. It uses a variety of diagnostic tools, including blood tests, bone marrow biopsies and imaging studies to diagnose and treat these conditions. Treatment options may include medications, blood transfusions, bone marrow transplants, or chemotherapy. This book is a compilation of chapters that discuss the most vital concepts and emerging trends in the field of hematology. It will serve as a reference to a broad spectrum of readers.