Mem Fox is a renowned children's author from Australia. Among the best known of her many books is Possum Magic, which, aside from being a charming story, serves as an excellent child's introduction to Australia.
Ms. Fox has an excellent website, chock full of a great variety of information: everything from her biography, to lists of can't-miss books for kids, to recipes, to practical advice for would-be writers. Check it out, and be sure to allow yourself enough time to fully explore the site.
Thanks to Loobylu for information on Mem Fox's site.