From 2001 until 2014, Dr. Giuliano Mariani has been Full Professor of Nuclear Medicine and Director of the Postgraduate Specialty School in Nuclear Medicine at the University of Pisa, as well as Director of the Regional Center of Nuclear Medicine of the University Hospital of Pisa (Pisa, Italy). His prior academic career started at the CNR Institute of Clinical Physiology and at the University of Pisa, shortly after his MD graduation in 1968 at the Catholic University in Rome (Italy). Dr. Mariani’s interests span over virtually all clinical applications of nuclear medicine, including both diagnostic and therapeutic applications, with an emphasis on development of novel techniques for radionuclide-based diagnosis and therapy of different tumors. He has published over 320 articles in international peer-reviewed journals. In addition to being member of the Editorial Board of the most prestigious international journals of nuclear medicine and diagnostic imaging in general, Dr. Mariani has edited or coedited 20 books and authored or coauthored about 100 chapters published in books. In recognition of his established role as an “opinion leader” in the national and international arena, Dr. Mariani has been named as Honorary Member of the Italian Association of Nuclear Medicine and of the European Association of Nuclear Medicine. He currently also serves as an Expert Consultant of the International Atomic Energy Agency (IAEA, Vienna) for carrying out and developing training programs for Nuclear Medicine throughout the world.