Ulfers has written on a variety of subjects, such as German Romanticism, the novel in the 20th century, philosophy at the turn of the century, and post-structuralism as well as deconstruction.
Friedrich Ulfers hat zu vielerlei Themen publiziert, so etwa zur Deutschen Romantik, zum Roman des 20. Jahrhunderts, der Philosophie an der Wende des Jahrhunderts, zum Poststrukturalismus und zur Dekonstruktion.