Chris Robertson has been a psychotherapist and trainer since 1978. He was the co-creator of Borderlands and the Wisdom of Uncertainty, which in 1989 became the subject of a BBC documentary.

In 1988, he co-founded Re-Vision, an integrative and transpersonal psychotherapy training with an ecopsychology component. He retired from Re-Vision in 2018. He was chair of the Climate Psychology Alliance, with which he still works.

Chris Robertson is an author-illustrator from Pasadena, CA.

He graduated from Cal State Northridge with a degree in illustration and spent 10 years freelancing for magazines and newspapers before becoming a storyboard artist for Nickelodeon Animation Studios.

His most recent books are Harry and the Hot Lava, My Yellow Umbrella, I'll Trade My Peanut-Butter Sandwich, and Little Miss Liberty.