Holger is currently Professor of Small Animal Diseases and the Head of Department of Small Animal Medicine and Surgery, University of Veterinary Medicine Hanover, Honorary Professor of Veterinary Neurology and Neurosurgery, Royal Veterinary College, London and Affiliate Professor of Veterinary Neurology, University of Copenhagen. He graduated from the University of Veterinary Medicine Hanover in 2001, where he also did his PhD in Neuropharmacology studying basic mechanisms of drug-resistant epilepsy. He then completed his specialist clinical education doing an internship and a residency in Neurology and Neurosurgery at the Royal Veterinary College (RVC). The RVC also provided him with the chance to not only excel academically and clinically, but also in his leadership skills, going through the reigns from lecturer to head of service, clinical director of the Small Animal Referral clinic and last as head of department of clinical science and services. Holger is internationally known for his work in the field of SARS-CoV-2 Medical Scent Detection Dogs, neuropathic pain and epilepsy. He was President of the European College of Veterinary Neurology and active in the Executive Board of Veterinary Specialisation as treasurer. He has been a recipient of several Jim Bee educator excellent in teaching awards, Gerhard-Domagk-Award, Bourgelat Award from BSAVA, the International Canine Health Award from the Kennel Club, and the RCVS International Award.