Betty G. Birney (born April 26, 1947) is an American author, screenwriter, and teacher.
She has also written for video games, television, and movies, including the 2002 made-for-TV film Mary Christmas.
Humphrey, who was introduced to the class by a substitute teacher, Ms. McNamara (known as "Ms. Mac" to the students), is smarter than he looks and often helps the children with their problems, though no one expects anything from him because he's a hamster.
[citation needed] The first title in the series, The World According to Humphrey, was published on February 2, 2004.
[2] PW praised The World According to Humphrey, calling it a "breezy, well-crafted first novel, narrated by a hamster.