When RMIT architecture student Jack Dowling started dating his partner Kara Rodski three years ago he had never thought of creating a colouring-in book for adults. Now Mr Dowling has found himself ...

11:30, Mon, Mar 21, 2016 Updated: 14:05, Mon, Mar 21, 2016 What is adult colouring in? Children have always loved colouring books, but an increasing number of grown-ups have also started to pick up ...