The evolution of medicine is one of the outstanding features of the past century. The progress achieved by organ transplants is particularly important in this regard. Transplant medicine has progressed massively, but, due to insufficient social donation responses, waiting patient lists increase and the sad consequences of this reality persist indefinitely. This book provides a thorough analysis of the problems presented by organ transplants and social behaviour. It interprets the evolution of transplantation, and its associated medical, ethical-legal, psychosocial and religious problems, as well as educational proposals that have accompanied this medical practice over time. It will serve to provide, at all societal levels, the possibility of a clear understanding of this serious health crisis.