There are more than one Daniel Katz. Finnish Daniel Katz (b. 1938) has written the books: Kun isoisä Suomeen hiihti, Mikko Papirossin taivaallinen niskalenkki, Laturi, Laituri matkalla mereen, Orvar Kleinin kuolema, Herra Lootin tyttäret and Naisen torso ja muita kertomuksia. Second Daniel Katz (b. 1903) has written the book: The social psychology of organizations and third Daniel Katz has written Saying I No More: Subjectivity and Consciousness.
See also Daniel Kac