Sean Callery is a teacher and a children's writer who has worked with many major publishers. He specialises in narrative non-fiction where facts are combined with stories. He also writes non-fiction (mainly history) and fiction, which includes playscripts and novels. Sean has developed and written several series including Wham! for Barrington Stoke, Hide and Seek, a clue-based book for Kingfisher; the Take Two narrative non-fiction series for Evans, and Dark Histories, recounting the nastier side of various eras for Amber Books. He still teaches in a primary school part time.