Matthieu Ricard is a Buddhist monk and has authored several books, including The Monk and the Philosopher and The Quantum and the Lotus.

He is a major participant in the research collaboration between cognitive scientists and Buddhist practitioners, spearheaded by the Dalai Lama and the Mind and Life Institute.

Ricard is a noted translator and photographer, and initiates and oversees humanitarian projects in India, Tibet, and Nepal.

Jason Gruhl believes that all kids are smart, brave, kind, and creative, and he writes books to help them remember that. As an author and psychotherapist for children and adults, Jason is dedicated to making a difference in people's lives and to helping them realize their power and potential.

Jason is a former special educator and the former executive director and founder of The Joshua School (a school for children with Autism spectrum disorders and developmental disabilities in Boulder and Denver, Colorado). He holds a master's degree in counseling psychology.

When not writing, Jason is addicted to scones, board games, reading, and watching sci-fi movies.

Becca Hall is an illustrator based in the Lake District, England. Her work appears across the United Kingdom on stationery and giftware, and in children's books.