zˈɑːn wʌzðɪ ˈɔːθɚɹ ʌv sˈɛvɹəl bˈʊks ænd ˈɑːɹɾɪkəlz, ˈɔfən fˈoʊkəsɪŋ ɔnðə tˈɑːpɪks ʌv kˈɑːnʃəns ænd wˈɔːɹ.
Zahn was the author of several books and articles, often focusing on the topics of conscience and war.