Gwen Bailey is an animal behaviourist and the founder of Puppy School (www.puppyschool.co.uk), a network of professional, well-trained puppy tutors across the UK. She has worked as an animal behaviourist for a leading UK animal welfare charity, and has successfully solved behavioural problems in thousands of dogs. Gwen now runs training courses for staff at animal charities and is the author of many books, including Puppy School, which has sold over 140,000 copies worldwide.