This short book describes the history of crime and detective literature for young readers, from its origins in the nineteenth century to the present day. It is not only a survey of writing for children, but also covers children involved in crime and detection in stories for adults, such as the Sherlock Holmes stories, and the work of Charles Dickens. In the twentieth century the book discusses the Stratemeyer Syndicate, Nancy Drew and the Hardy Boys, Enid Blyton, Erich Kaestner, and others, showing how crime and detective fiction for children differs from the adult genre. A version of this book appears as an entry in A Companion to Crime Fiction, edited by Charles Rzepka and Lee Horsley (Blackwell, 2010). 6000 words/24 pages (approximately).