Matt Killeen's novel Orphan Monster Spy was shortlisted for the Costa Prize. His second novel Devil Darling Spy was called "deeply absorbing and rewarding" by the Guardian. Matt, who is quarantined in the company of a four year old, says:
You shouldn't be afraid to be mundane and just tell your story. People in the future will want to hear that.
"Don't be afraid to make your diary a bit fictional. Be the 'unreliable narrator' of your own life!"
Here is a video of Matt talking about the enormous possibilities of a diary: