Corinne Sweet is a psychologist, psychotherapist and author of non-fiction titles including Change Your Life with CBT. A journalist and broadcaster, she is a well-respected figure in self-help and mindfulness is one of her specialist areas.

Marcia Mihotich is a London-based graphic designer and illustrator whose clients include The School of Life, Donna Wilson and Guardian. She is also creative director of Rosy Lee Tea London.