Katie Clark 's published works include multiple children's books, including A Tour of Your Muscular and Skeletal Systems , Animal Actors , Police Horses , and more. She is anticipating the release of her first YA science fiction novel, Vanquished , through Pelican Book Group. She is available for classroom visits and Skype chats to discuss her books. You can learn more at her website, www.katieclarkwrites.com.