Geert Smid is a psychiatrist and endowed professor of psychotrauma, loss, and grief, ARQ Centrum'45/ ARQ National Psychotrauma Centre and University of Humanistic Studies, The Netherlands. As a clinician, he has worked with trauma survivors since 2003. In 2011 he obtained his doctorate with the thesis Deconstructing Delayed Posttraumatic Stress Disorder. In 2013 he initiated the Day Patient Treatment for Traumatic Grief at ARQ Centrum’45. In collaboration with other experts, he developed several clinical interventions and tools for the diagnosis and treatment of prolonged and traumatic grief, such as the Traumatic Grief Inventory-Self Report Plus (TGI-SR+), the Ambiguous Loss Inventory Plus (ALI+), the Bereavement and Grief-Cultural Formulation Interview (BG-CFI), and Brief Eclectic Psychotherapy for Prolonged and Traumatic Grief (BEPPTG). He has published extensively in scientific journals and books on the prevalence, diagnosis and treatment of PTSD and prolonged grief, stress sensitization and delivery of evidence-based trauma- and grief-focused care. His current research on PTSD and grief focuses on meaning attribution after loss, epidemiological and cultural aspects, diagnostics, prevention, treatment, palliative care and development of a grief care network.