Britain's Guardian newspaper will follow The Times and the London Independent by shifting to a smaller format this autumn in an attempt to appeal to younger readers and commuters.
The Guardian's sister paper, the Observer, is on track to be the first national UK Sunday paper to make the switch to a smaller format early next year.
The move to the mid-sized 'Berliner' format, in between the Guardian's current size and the smaller tabloid size used by the Times and Independent, leaves only the Telegraph and the Financial Times in the daily broadsheet format.
Britain's broadsheets are facing long-term declines in circulation as younger readers increasingly get their news from television and the Internet.
More than 50 newspapers worldwide have made the shift to a smaller format, according to the World Association of Newspapers. The Irish Independent made a similar switch last year.
The Wall Street Journal announced plans for a compact version of its European and Asian formats last month.
The Guardian Media Group, publisher of the Guardian and Observer, is owned by the Scott Trust, set up to preserve the papers' independence.
