Johnny studied fine art at Crawford College of Art and Design, Cork, Ireland and Aki Academy of Art & Design, Netherlands. He received a Masters in Fine Art Printmaking at Camberwell College of Art London. He has travelled widely and draws from a vast source of imagery and ephemera. He makes work in a variety of different media. When not creating his own work he is busy facilitating others as technician and master printer at Cork Printmakers Fine-Art Printmaking Studio.
Johnny's work has been widely exhibited and is in numerous collections including National Gallery of Ireland, University College Dublin, Office of Public Works, Ireland, Bank of New York, Horace Mann School, New York.