Tamsen Wolff's first book, Mendel's Theatre: Heredity, Eugenics, and Early Twentieth-Century American Drama (Palgrave, 2009), reveals the complex role of heredity and hereditary theory in the emergence of modern American drama. She has also published numerous essays—on musical theatre audiences, Anne Bogart's American Silents, gender and dramaturgy, eugenics in Eugene O'Neill, the limits of empathy, Wendy Wasserstein's feminism, among other subjects—in journals including Theatre Journal, Modern Drama, Performing Arts Journal, Theatre Topics, Theatre Forum, and The Chronicle of Higher Education. Currently, she is working on a book entitled Ev'ry Syllable She Utters: Parsing the Voice in Musical Theatre, which demonstrates how musical theatre tells specific narratives about bodies in and through expressive vocal practices, including fast-talking or hyper diction, call and response, ventriloquism, and ensemble singing. She has also begun work on a new novel, tentatively titled This Is a New Country.