Book 1
The World According to Humphrey
Betty G. Birney
Book 2
Friendship According to Humphrey
Betty G. Birney
Book 3
Trouble According to Humphrey
Betty G. Birney
Book 4
Surprises According to Humphrey
Betty G. Birney
Book 5
Adventure According to Humphrey
Betty G. Birney
Book 6
Summer According to Humphrey
Betty G. Birney
Book 7
School Days According to Humphrey
Betty G. Birney
Book 8
Mysteries According to Humphrey
Betty G. Birney
Book 9
Winter According to Humphrey
Betty G. Birney
Book 10
Secrets According to Humphrey
Betty G. Birney