Bone Marrow transplantation or Hematopoietic stem cell transplantation is a life saving procedure in a number of diseases,hematological and non hematological, which fail alternative medical management or have no other treatment options. It has transformed the lives of thousands of patients and their families around the world battling with fatal or debilitating diseases.There are many unique aspects of bone marrow transplantation which makes it very different from solid organ transplants. There is an enormous amount of research going on in this field both at clinical and basic science levels.With the rapidly changing world and field of transplantation, there is a need for an authoritative and up to date resource for transplant professionals.