Since earning a master s in writing at Johns Hopkins University, Caragh O'Brien has been a high school teacher, a published author of romance novels, and now a novelist for teens. Her first young adult novel, "Birthmarked", was a Junior Library Guild selection and an American Library Association Best Book for Young Adults, and was nominated for the YALSA Best Fiction for Young Adults list as well as the 2010 Amelia Bloomer list.