Professor B. J. Rahn formerly taught English literature at Hunter College in New York. She has been teaching, researching, and writing about crime fiction for over two decades. In addition, she gives courses at the Renaissance academy in Naples, Florida.
She has published articles in journals and reference books such as The Armchair Detective, St. James Guide to Crime and Mystery Writing, Scribner's Mystery and Suspense Writers: The Literature of Crime, Detection, and Espionage, The Dictionary of Literary Biography and the Oxford Companion to Crime and Mystery Writing.
Professor Rahn also leads detective walking tours. In the UK, the tours visit sites in the lives and fiction of authors such as Arthur Conan Doyle, Dorothy L. Sayers, Agatha Christie, and Margery Allingham. In the USA, the tours feature New York authors Dashiell Hammett, Rex Stout, Linda Fairstein and Edgar Allan Poe. Virtual tours are available as slide lectures.
She is a member of the Mystery Writers of America, the Crime Writers Association in the UK as well as the Sherlock Holmes Society of London, the Dorothy L. Sayers Society, and the Margery Allingham Society.