Imogen Russell Williams is a children's literature critic and author of children’s non-fiction including Great Britons and Great Elizabethans (Nosy Crow), The Big Book of the UK and The Big Book of Slimy Things (Ladybird) and a forthcoming book about magical creatures in folklore. She also writes poetry for both children and adults. Her first collection, The Women Left Behind, was published in 2019 by Dempsey and Windle; her second, Strange Sons, Dangerous Daughters, a revisiting of the Mabinogi, is published by Broken Sleep in 2026. Kitty and Mary is her first novel for adults and young adults.