Read a lot. But read as a writer, to see how other writers are doing it. And make your knowledge of literature in English as deep and broad as you can. In workshops, writers are often told to read what is being written now, but if that is all you read, you are limiting yourself. You need to get a good overall sense of English literary history, so you can write out of that knowledge.

When we tell stories about things that are important - love, fear, beauty - we change the way people think about the world. Writers are, or should be, truth-tellers even when the stories themselves are fantasy.

Jorge Luis Borges wrote a poem when he was in his 80s about one day writing the book that would justify him. This was long after he had become one of the great masters, a writer everyone looks up to and reveres. As artists, I don't think we ever see ourselves as done. We always think we're at the beginning . . .

The only thing worth thinking about, when I write a story, is whether I like it, whether I want to write it, whether it excites me.

If readers like The Thorn and the Blossom, which I would call literary fantasy, I think they would like books such as Elizabeth Hand's Mortal Love, Catherynne Valente's The Girl Who Circumnavigated Fairyland in a Ship of Her Own Making, and Kelly Link's Stranger Things Happen.

The editor, Stephen Segal, actually called me with the idea of creating an accordion book [ "The Thorn & The Blossom"], and asked if I could write a story for it. I was so intrigued! I immediately knew that it had to be a love story told from the points of view of the two main characters. Right away, I started working on a proposal. And once I had my main characters, Brendan and Evelyn, it was as though they started telling me their stories.

That sort of effort has to come not only from the writer but also from a really innovative publisher like Quirk.