Anna Dewdney (December 25, 1965 – September 3, 2016) was an American author and illustrator of children’s books. The first book she wrote and illustrated, Llama Llama Red Pajama, received critical acclaim in 2005. She wrote other books in the Llama Llama series, which have all been New York Times bestsellers. Her work has been adapted into stage plays, dance performances, musicals, and an upcoming animated television series. Many states and non-profits use her books for literacy campaigns and programs, including the Library of Congress.