Rosen was born in Cornwall. She studied psychology at Oxford before moving back to the West Country.
She now lives on the south coast of Devon with two imaginary cats, fantasising about getting a real one.
Readers have downloaded over 200,000 copies of Rosen's books. Several titles have broken into the Amazon charts, including a number 1 humorous fiction bestseller.
Authors, whether we use a pen name, airbrush our pictures or try to go 'eau naturalle', we are all guilty of editing the version of ourselves that we show the public. I say 'guilty' but there's really no shame in it. Everybody has many editions of themselves, from the mild mannered parent we show our children to the foul mouthed hooligan we become at a football match. Being an author is no different.