Stella Smyth and co-author Sally Bergh-Roose have been training dogs since 1978 and have been involved in competition work with a variety of dogs. They have both competed successfully in Kennel Club Working Trials, which Sally also judges. They have handled dogs in the UK and overseas, worked on several dog books as well as TV advertising and TV shows. Together they have been running a successful dog training course for the last 15 years.