Professor Ari Leppäniemi is the Chief of Emergency Surgery at the Helsinki University Hospital, Finland. He is the current President of the European Society for Trauma and Emergency Surgery (ESTES), Past-President of the Finnish Society of Surgery, and International Association for Trauma Surgery and Intensive Care (IATSIC). He is the Editor-in-Chief of the Scandinavian Journal of Surgery, Editor of the European Journal of Trauma and Emergency Surgery, and Associate Editor of the World Journal of Surgery. He has published over 150 original articles and more than 300 reviews and book chapters. His hobbies include fishing, badminton, and jazz.