She has written books that tie into TV shows (such as Charmed and Wishbone) as well as several series. She is the author of the six-book series, The Books of Magic, based on Neil Gaiman's hit comic classic of the same name. Her books are sold in many countries, and she always gets a kick seeing her titles in other languages. "My favorite is the Thai version of Books of Magic," she says. "The alphabet is so beautiful, and I find it funny that my own words are completely unrecognizable to me!"
In addition to writing and editing books for YA readers, she is at work on several books for adults, and is also an actress, a playwright and a trapeze performer. These pursuits have allowed her to do a lot of traveling, particularly to Scotland, and she's met many wonderful and amazing people. "The trapeze thing is definitely what surprises most people -- even people who know me, and especially myself!"