Colin C. Tennant has trained dogs and developed methods to improve their behaviour for 30 years. He has trained in Law, Psychotherapy, Hypnotherapy and the Police Dog Section. He has also competed successfully in working trials and obedience to the highest levels in the UK. He set up the Canine & Feline Behaviour Centre in Hertfordshire & London, where he has gained much experience with dogs and cats, advising on a diverse range of behavioural problems and showing owners how to gain control. He is also Britain's leading media expert in dog and general pet care and behaviour and regularly appears in BBC & ITV programmes such as BBC Kilroy, BBC Value for Money, BBC 4X4, and ITV News. Colin is also a successful pet film Director, Producer and Broadcaster for Video & BBC TV. He also is an author of the new definitive book on dog behaviour: Breaking Bad Habits for Dogs.

He currently writes for many of Britain's top Pet Magazines and National Newspapers. He has an international client base and visits problem pets in many countries. He has also had the privilege of consulting with members of the British Royal Family, Middle Eastern Royal families, celebrities and their array of naughty pets.