Rosen was born in Cornwall. She studied psychology at Oxford before moving back to the West Country.
Readers have downloaded over a quarter of a million copies of Rosen's books. Several titles have broken into the Amazon charts, including a number 1 humorous fiction bestseller.
Building a blog following can be an effective book selling tool. However, although most authors have blogs, many use them simply to list information about their books. Whilst promotional posts are useful to existing readers, they are unlikely to help attract new ones. Here are some examples of the types of content that has been shown to engage new readers.