According to Humphrey is a series of 12 books written by Betty G. Birney. Here, you can see them all in order! (plus the year each book was published)
12 books in this series
The author is Betty G. Birney.
There are 12 books in the According to Humphrey series.
The first book was written in 2004, and the last book was written in 2016 (we also added the publication year of each book right above the "View on Amazon" button).