Sjoerd H. van der Burg, PhD, is a Professor in Experimental Cancer Immunology and Therapy at the Department of Clinical Oncology of the Leiden University Medical Center. He has extensive experience in tumor immunology and the immunotherapy of cancer, in particular the development of therapeutic vaccine strategies and the adoptive transfer of ex-vivo expanded T cells. He is specialized in the immunomonitoring of human T cell responses and is the current Chair of the Association for Cancer Immunotherapy Immunoguiding Program (CIP).