A mother-of-three has written an entire 200-page novel on her Blackberry.
Georgina Campbell, 41, has just won a publishing contract for her debut book The Kickdown Girls, which she wrote in four months on her mobile phone while commuting, bathing and walking to work.
"I started typing on my Blackberry because it was something I had with me all the time and could easily just take out and start typing anywhere," Georgina told the MailOnline.
"I was writing on the train, on breaks at work, waiting for a bus, having a bath, when I was walking around — anywhere.
"It completely took over my life — all I thought about morning to night was writing the book."
After 18 weeks, Georgina's two thumbs had tapped out more than 55,600 words.
The resulting book The Kickdown Girls — a thriller about a group of girls growing up in South London — was published by Memoir Books this month, to Georgina's delight.
"When I started writing the book I would normally do it after a 12-hour shift at work and it would be a breeze — I loved it and wrote through the night," she said.
"It was almost like a holiday — I'd just sit down and start typing the book out on my Blackberry using my two thumbs.
"It was one of the most satisfying things I've ever done — and to have it published it just amazing."