ABC says John's thriller-writing has "the sophistication of John le Carré and the pace of Jeffrey Archer." The Australian says "Green is in the front rank of thriller writers." John's also a well-known business writer and commentator. His pieces have appeared in a variety of Australian and overseas publications including: ABC Drum Online, Company Director, Business Spectator, The Australian, The Australian Financial Review, The Age, The Bulletin, and the UK's Financial Times. As well as writing, John's on the governing council of the National Library of Australia, is a board member of two stock-exchange-listed corporations and not-for-profits, as well as a co-founder of Pantera Press. He lives in Sydney with his wife, a sculptor. Previously, John was an executive director in a leading investment bank. Earlier, he'd been a partner in 2 major law firms, and a director of a publishing house.