Sarah Naish is author of bestselling parenting guide The A-Z of Therapeutic Parenting. She is an adoptive parent, founder of the National Association of Therapeutic Parents, director of Inspire Training Group and author of the hugely popular Therapeutic Parenting Books series.

Kath Grimshaw is a writer, illustrator and children's book designer. She has Obsessive Compulsive Disorder and, as a child, she struggled to understand why she felt the way she did, which inspired her to write Frankie's Foibles. Kath studied Human Sciences at Oxford University before pursuing a career in children's book publishing. She now freelances from her hometown of Totnes, Devon, where she lives with her husband, two boys and three cats.