Robert H. Anderson is now recognized as the foremost expert Worldwide currently researching the structure and development of the normal and the congenitally malformed heart, with special emphasis on the disposition of the cardiac conduction tissues. Throughout his career, when he was based first at Royal Brompton Hospital, and subsequently at Great Ormond Street Children’s Hospital, all his studies had been directed towards clinicians, with the aim of stimulating surgical techniques, improving the management of children born with congenital heart defects, and contributing to the understanding of the various fields of diagnosis. On his retirement, he was made Emeritus Professor at University College, London. Subsequent to this alleged “retirement”, he has remained deeply involved in collaborative research, now using episcopic microscopy and molecular biological techniques to follow the fate of tissues, and thus tracing the development of both normal and abnormal hearts.