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Author David Mitchell tweets new short story

14 July 2014 Last updated at 13:49 BST

The novelist David Mitchell, author of Cloud Atlas, has started tweeting a short story. He will releasing the rest of it in clusters of tweets over the next seven days.

It comes ahead of the publication of his new novel later in the year. The BBC's arts correspondent Rebecca Jones has been hearing why a man who says he is "not a social media animal" has made this move.

First broadcast on BBC Radio 4's Today programme on Monday 14 July.