In his new role Hall will be working closely with the editors of the publisher's five national newspapers, including its flagship tabloids The Daily Mirror, the Sunday Mirror and The People. He will report directly to Trinity Mirror managing director Mark Hayson.
Hayson said: "[Hall's] experience will be invaluable in developing new initiatives to improve even further the quality and effectiveness of our award-winning newspapers."
The hiring is the first senior appointment following the surprise announcement at the end of last year that Sly Bailey, chief executive of consumer magazine publisher IPC Media, is take over from Phil Graf as Trinity Mirror chief executive.
Hall joins at a difficult time for Trinity's national titles. Its flagship daily tabloid the Daily Mirror was relaunched with a new serious tone last year and dropped its price, sparking a price war with rival The Sun.
This morning it was revealed on Brand Republic that the Sunday Mirror is set to report a 6% decline in its year-on-year circulation when the ABC figures for the six months to December 2002 are published over the weekend.
Sunday standalone red-top The People is being hammered by the launch of Richard Desmond's Daily Star Sunday, which had also hit the New of the World.
Hall joins from the Press Association, where he has been managing director of its contract publishing since April. Before that, he was editor of celebrity magazine Hello!. He was editor of the News of the World for five years until 2000, when he was replaced by the current editor Rebekah Wade.
Trinity Mirror's other national titles are its two major Scottish papers, the Daily Record and The Sunday Mail.
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