Nikki Sheehan is the youngest daughter of a rocket scientist. Sheehan achieved a first class degree in linguistics and worked as a subtitler on Coronation Street and The Simpsons. She later studied developmental psychology and journalism and continues to work as a freelance journalist and copywriter, specialising in parenting features. Sheehan has three children and is also a story mentor with Little Green Pig (Ministry of Stories) helping children to access their creativity. In addition, Sheehan is also one of three organisers of Brighton Rocks Books, the first mini festival of children's writing in the area. Sheehan is also the author of Who Framed Klaris Cliff? Published by O. U. P in 2014.
