Lois Rock has established an international reputation as a children's writer. Specialising in Bible stories, prayer books, and information books, her books have been translated into over 30 languages with sales approaching 4 million copies. She draws on her experience as a mother of three, and as a leader of church children's groups. Helen Cann has been working as an illustrator for a number of years, increasingly specializing in children's books. For Lion she has illustrated Who Laid the Cornerstone of the World and A Child's Book of Celtic Prayers and Baboushka.