Jackie is an amazing children's writer. Diary of a Wombat is one of the best picture books ever, but what I love about her stories is that you are always totally with the charaters and with the moment. She doesn't distact readers with her writerly cleverness - and she is one very clever writer.
Here are some of Jackie's tips about writing. Some are specifically about writing for children, but I find them invaluable when your writing for anyone.