The content of this book is organized into 25 chapters, beginning with basic immunology related to blood group serology and interactions between antigens and antibodies. The successive chapters cover the most common blood groups, pretransfusion testing protocols, transfusion reactions, blood components, apheresis (one of the fastest growing and most promising methods of blood collection and component harvesting), hemolytic disease of the new-born, hemovigilance, quality assurance and regulatory issues. The book is written at a level adaptable for multiple categories of students.