About P.L. Travers Books by P.L. Travers Mary Poppins (picture book) by (author) P.L. Travers illustrated by Genevieve Godbout Ages 4 to 7 Grades p to 2 Mary Poppins Comes Back by (author) P.L. Travers illustrated by Mary Shepard Ages 10 to 12 Grades 5 to 7 Mary Poppins Opens the Door by (author) P.L. Travers illustrated by Mary Shepard Ages 10 to 12 Grades 5 to 7