Shelley Mitchell wrote Pink with Envy out of her love for the little marsupials. She has been collecting koala bear trinkets and stuffed animals since she was nine. She noticed in her collection of over 100 koala bear items there was a small stuffed pink koala bear among the grey ones, and thus Pink with Envy was born.

The bonus book The Kindergarten Koala is included to incite young ones to read as early as possible. It describes all the fun times they can enjoy starting school.