There are many different breeds of Black Dog affecting millions of people from all walks of life. The Black Dog is an equal opportunity mongrel.

In a former life, Matthew Johnstone was a successful creative in advertising. He worked all around the world and won many coveted industry awards. He has since taken that skill of communicating simply and effectively into writing and illustrating books and public speaking. Matthew has published 9 books many of which have been bestsellers internationally. He gave a keynote to 87 representatives at the World Health Organisation of the power of imagery in understanding difficult to articulate subjects such as mental health, meditation, resilience and stress. Matthew's work has been endorsed by Stephen Fry, Edward de Bono, Google and the World Health Organisation. He is one of six, Australia wide, that have been nominated for the 2018 Australian Mental Health Awards for his outstanding work in the mental health and wellbeing space. His simple motto is 'Flicking Switches with Pictures'.