Sarah S. Brannen is the illustrator of the Robert F. Sibert Honor book Summertime Sleepers, written by Melissa Stewart. She is the author of Uncle Bobby's Weddingillustrated by Lucia Soto. Uncle Bobby's Wedding was the eighth most-challenged book in the US in 2008, and it was one of the 100 most frequently challenged books in the last decade. It was republished in 2020 and was a New England Book Award finalist.


Sarah also wrote and illustrated A Perfect Day, Bear Needs HelpMadame Martine, and Madame Martine Breaks the Rules. She illustrated Seashells: More Than a Home  and Feathers: Not Just For Flying, the Crystal Kite Award winner and an ALA notable book; both were also written by Melissa Stewart; She illustrated the 40th Anniversary edition of All Kinds of Families by Norma Simon, as well as many other children's books

Sarah is represented by The Chudney Agency. She lives in Massachusetts.