Blood services and Transfusion Medicine have become more clinical, scientific, well organised and consolidated over the last 20 years. More is known about the frequency and aetiology of the hazards of blood transfusions. The ABC of Transfusion is a well established introduction for all staff working in blood services, blood transfusion departments, surgical units and intensive care, and all prescribers and users of blood. It is a comprehensive, highly regarded guide to all the practical aspects of blood transfusion, including the various complications that can arise. This fourth edition of ABC of Transfusion includes five new chapters on all the latest issues including pre–transfusion testing, vCJD, stem cell transplantation, immunotherapy, and appropriate use of blood – reflecting the fact that transfusion medicine has been revolutionised. Useful as a practical guide, a refresher or for quick reference, it covers all essential transfusion matters and is an ideal source of information for all health professionals involved with safe and efficient use of blood.