Her first book, Goodnight Sigmund was published by Harcourt in 1992. Since then Nancy has produced a steady stream of published works including the picture books Dogs in Space, Big, Bigger, Biggest, Fred Stays with Me!, Catch That Baby! and Aunt Ant Leaves through the Leaves. In addition to working with educational, small houses and foreign publishers, Nancy has worked with several big houses including Houghton Mifflin, Scholastic, Chronicle, Little Brown, Holiday House, Henry Holt, Simon & Schuster and Highlights.

Her first young adult novel, Listen was published by Westside in 2009 and Nancy is an ongoing contributor of snappy non-fiction, short fiction and comics for the Uncle John Bathroom Readers for Kids series.

Awards for Nancy’s books include a Boston Globe-Horn Book Honor Award 2008, School Library Journal’s (SLJ) Best of 2007, Kirkus Best of 2007, Miami Herald’s Best Children’s Books of 2007, ALA Notable Books, Bank Street College of Education’s Children’s Book Committee Books of Particular Distinction/Best Children’s Books list, and the Cooperative Children’s Book Center’s 2008 Best Books list. Her books have also earned starred reviews in Kirkus, Horn Book, and SLJ.

Nancy Coffelt has taught writing to fellow word nerds ages 6 to adult since 1992. Her teaching style has been described as “thoughtful,” “motivating,” and “inspiring.”