The real question, then, is: What makes a writer? Unfortunately, a few sentences cannot answer that. A writer is made by writing, and by reading, and by living: going to work, and eating, and being bored, being loved and being hurt, being held by your mother (or not), by sleeping, by waking up from bad dreams, by erasing one sentence, and rewriting it, erasing it again. All that, you see, cannot be summed up in a jacket flap.
Stumbled upon an old article by Edan Lepucki, this one about author bios and including (or not) details about non-writing achievements and jobs. I was interested in the whole thing, but I especially liked this little ditty.