Justine Larbalestier is an Australian young-adult fiction author. She is best known for the Magic or Madness trilogy: Magic or Madness, Magic Lessons and the newly released Magic's Child. She also wrote one adult non-fiction book, the Hugo-nominated The Battle of the Sexes in Science Fiction (Best Related Book, 2003), and edited another, Daughters of Earth: Feminist Science Fiction in the Twentieth Century.
Her surname has been pronounced in several different ways, but the FAQ on her website says that Lar-bal-est-ee-air is correct:
Q: How do you pronounce your surname? A: Lar-bal-est-ee-air. It can also be pronounced Lar-bal-est-ee-ay or Lar-bal-est-ee-er. Those are all fine by me. Friends at school used to pronounce it: Lavaworm. I have to really like you to let you get away with that one, but.
Larbalestier was born and raised in Sydney, Australia. She now alternates living between Sydney and New York City.
In 2001, Justine married fellow author Scott Westerfeld.