Betty G. Birney

School According to Humphrey

The World According to Humphrey

Spring According to Humphrey

Humphrey's Creepy-Crawly Camping Adventure

Winter According to Humphrey

Holidays According to Humphrey

The Humphrey Audio Collection, Books 1-3: The World According to Humphrey; Friendship According to Humphrey; and Trouble According to Humphrey (Unabridged)

The Humphrey Audio Collection, Books 4-7: Surprises According to Humphrey; Adventure According to Humphrey; Summer According to Humphrey; and School Days According to Humphrey (Unabridged)

Happiness According to Humphrey (Unabridged)

Wildlife According to Og the Frog (Unabridged)

Exploring According to Og the Frog (Unabridged)

School Days According to Humphrey (Unabridged)