The book “Determination of group and Rh blood ownership and detection of antibodies”, created by the team of authors, is an indispensable source of knowledge for medical professionals, students and anyone interested in the intricacies of transfusiology and immunology .. This publication is a true guide to the complex and important world of blood-exchange systems, revealing the secrets of determining blood groups and Rh-factor, as well as methods for detecting antibodies that play a key role in ensuring the safety of transfusions and the diagnosis of various diseases. This book immerses the reader in the basics of the classification of blood groups, explaining the complex mechanisms of immunological reactions and the role of antibodies in the human body. The authors analyze in detail modern methods of determining the group affiliation of blood, including classical and automated technologies, which makes the book relevant for practicing doctors, laboratory technicians and students of medical universities. Particular attention is paid to the detection of antibodies that can cause incompatibility in blood transfusions, as well as to consider cases where the human immune system reacts to foreign antigens. The book “Definition of group and rhesus belonging to the blood and detection of antibodies” is not just a textbook. This is a practical guide filled with real cases, modern techniques and recommendations that help improve the accuracy of diagnosis and reduce the risk of complications. The authors use clear and accessible language, which makes complex medical concepts understandable even for beginners, and a rich illustrative material helps to better assimilate the material. Who can like this book? First of all, it is intended for medical workers, laboratory technicians, students of medical universities, as well as for specialists engaged in transfusiology, immunology and hematology . Its value is especially evident for those who work in clinics, laboratories and blood centers, where the accuracy and timeliness of determining blood groups and antibodies are vital. In addition, the book will be of interest to researchers and teachers seeking to expand their knowledge in the field of clinical immunology. The topics raised in this book go beyond the simple definition of blood groups. The authors consider the issues of immunological reactions, mechanisms of antibody formation, modern methods of diagnosis and prevention of incompatibility, as well as discuss cases of rare and complex situations requiring a special approach. This publication deserves attention not only because of its scientific content, but also because it helps to understand how important accuracy and accuracy in working with blood - the material carrier of life. The style of presentation in the book is distinguished by clarity and logical consistency, which makes complex topics available to a wide audience. Authors with rich experience and knowledge use examples from practice and modern scientific data, which gives the book special value. Their approach helps not only to master the theoretical foundations, but also to prepare for the practical situations faced by doctors and laboratory technicians in everyday work. If you are looking for a book that combines scientific accuracy, practical value and accessibility, “Determination of group and Rh blood ownership and detection of antibodies” will become an indispensable assistant for you. This publication is an important step towards improving professional skills and ensuring patient safety. It deservedly takes its place in the library of everyone who appreciates accuracy, responsibility and the desire to constantly improve in the field of medicine.