Peter Manning began his forty year journalism career as a copy boy with the Daily Telegraph, Sydney. After studying for a Bachelor of Arts at the University of Sydney he gained a cadetship at John Fairfax and Sons Ltd, first with the Sydney Morning Herald and later with the Sunday Sun-Herald as a feature writer. He wrote feature articles for The Bulletin, before joining ABC Television as a reporter on This Day Tonight, and becoming the program's top investigative reporter. In the late 1970s he edited Nation Review.
Freelance journalism took him to ABC radio, then television as producer of Four Corners. He produced several notable investigative stories, including 'The Big League' with Chris Masters and 'The Fiji Report' with Jim Downes, both resulting in Royal Commissions. In 1984-8 he was appointed Executive Producer of Four Corners and produced award-winning programs including 'The Moonlight State', on Queensland police corruption. As Controller of ABC TV News and Current Affairs he began a period of renewal of the network starting many successful programs, including Foreign Correspondent, Lateline, Landline and the televising of Australian Parliament. In 1993 Peter was made General Manager of the ABC national radio talks network, Radio National and was founder of the ABC Multimedia Unit.
He moved to the Seven Network in 1996, and after starting the successful current affairs program, Witness, was offered a position as Head of Current Affairs. Peter was Head of Corporate Development from 1999-2000.
In 2000 Peter was made an offer to write his memoirs. He then took up consultancies to industry bodies and accepted an offer as Adjunct Professor of Journalism at UTS.