This Humphrey Series Complete 12 Books Set includes the following 1. The World According to Humphrey 9780142403525 2. Friendship According to Humphrey 9780142406335 3. Trouble According to Humphrey 9780142410899 4. Surprises According to Humphrey 9780142412961 5. Adventure According to Humphrey 9780142415146 6. Summer According to Humphrey 9780142418185 7. School Days According to Humphrey 9780142421062 8. Mysteries According to Humphrey 9780142426692 9. Winter According to Humphrey 9780142427590 10. Secrets According to Humphrey 9780147514318 11. Imagination According to Humphrey 9780147517692 12. Spring According to Humphrey 9780147517777

• 9780142403525 9780142406335 9780142410899 9780142412961 9780142415146 9780142418185 9780142421062 9780571328352 9780142427590 9780147514318 9780147517692 9780147517777 Humphrey