Simon Wheeler was an Assistant Professor specialising in neurology and neurosurgery at the Royal Veterinary College in London until mid-1997, when he joined Pharmacia & Upjohn Ltd as their Veterinary Products Adviser. He is a very well known vet neurologist and is active in the European Society of Veterinary Neurologists.<br/><br/>Nick Sharp trained in the UK before relocating to the USA to study neurology and neurosurgery. He is now Assistant Professor of Small Animal Surgery at North Carolina State University.<br/><br/>Both trained under Dr Joe Kornegay, the USA's most respected vet neurologist/neurosurgeon (who wrote a foreword to the first edition and will probably do so for this edition).