According to Humphrey the Hamster Series Collection 12 Books Set by Betty G.Birney

1. More Adventures According to Humphrey
2. Holidays According to Humphrey
3. Surprises According to Humphrey
4. Mysteries According to Humphrey
5. Christmas According to Humphrey
6. Trouble According to Humphrey
7. The World According to Humphrey
8. Friendship According to Humphrey
9. Secrets According to Humphrey
10. School According to Humphrey
11. Imagination According to Humphrey
12. Spring According to Humphrey