Gregory O'Brien divides his time between writing, painting and curating exhibitions at the City Gallery in Wellington. He has had volumes of poetry, fiction and many essays published as well as two books of arts profiles.
- Moments of Invention: Portraits of 21 New Zealand Writers photographs by Robert Cross (Heinemann Reed 1998).
- Welcome to the South Seas: Contemporary New Zealand Art for Young People (Auckland University Press 2004).
- A Nest of Singing Birds: 100 Years of the New Zealand School Journal (Learning Media 2007).
- Back and Beyond: New Zealand Painting for the Young and Curious (Auckland University Press 2008).