Author Anna Dewdney died recently at her Vermont home of brain cancer. She was 50 years old. Dewdney’s first illustrated children’s book, “Llama Llama Red Pajama,” was first published in 2005. Since then, Llama Llama has become a 10-book series selling more than ten million copies. Maria Russo, Children’s Books Editor at the New York Times Book Review, remembers the author who was beloved by preschoolers and parents alike.