The first time I heard 'write what you know', I was a teenager working as a typist for the local council. Did that mean I could only write about typists? How incredibly boring! But as it turned out, I 'knew' quite a lot. I knew what it felt like to fall in love, to be dumped, to lose a much loved member of my family - all those life experiences authors recycle into their books. When I crashed my car, I wrote about it in A Girl's Best Friend, along with my own experiences of what it felt like to be betrayed by a friend. When I lived in Bath I wrote about that too (along with all those movies and TV dramas I had seen filmed there), in Why Do Fools Fall in Love. And, being a writer, what I didn't know I made up.