I write synopses after the book is completed. I can't write it beforehand, because I don't know what the book's about. I invent something for my publisher because he asks for one, but the final book ends up very differently. ↗
I try to do a lot of research beforehand so I know where I want to go with a scene. I try not to get too stressed about it, because I find that's the worst thing. ↗
