Paul Christelis has worked as a clinical psychologist, psychotherapist, and teacher. He is the director of School of Moments, an organization dedicated to teaching mindfulness to individuals, groups, and communities. He lives in London, England.

Alex Hoskins is an illustrator currently based in Bristol. Since graduating from Kingston University in 2018, she has been working as a freelance illustrator. She aims to make artworks which enliven the learning process whilst making it as accessible to as many children as possible.​