Jamie Mathieson is a writer for TV programmes including Doctor Who, Being Human and Tripped. In this post (originally published on his own website) he explains why spec' (speculative) scripts are a good thing.
Sarah Dollard is the writer of Episode 10 of Doctor Who Series 9, "Face the Raven". She previously shared some great advice for fellow writers via her tumblr, which we've republished here with her permission.