Mariam Gates holds a Master's in Education from Harvard University and is the creator of the renowned Kid Power Yoga. She is the author of the bestselling Good Night Yoga (more than 200,000 copies sold) and many other picture books for children. Catharine Collingridge studied Illustration at Falmouth College of Art, after which she worked as an in-house illustrator and then on packaging and promotional products for a bath and beauty company. In 2011 she began her freelance career and has since enjoyed expanding her style and illustrative subject matter with children's publishing artwork and greetings cards. Catharine is a very versatile artist, working in range of styles and media, and particularly loves line work and figure drawing.