Judith Viorst is an American author, poet, and playwright, born on February 2, 1931. She is best known for her children's books, including the popular Alexander and the Terrible, Horrible, No Good, Very Bad Day. Viorst has also written numerous adult works, including essays and poetry collections. In addition to her writing, Viorst has contributed to various magazines and has been involved in the theater. She has received several awards for her literary work, highlighting her impact on both children's literature and adult fiction. Viorst's storytelling often explores themes of family, relationships, and the challenges of life.