At the center of his numerous research projects and extensive body of publications and writings, which varied in style and depth and were directed at different groups of readers in English and predominantly in Hebrew and Persian, stood the academic investigation, documentation, and dissemination of knowledge related to the history and cultural heritage of Iranian Jews during the various periods and stages of both Iranian and Jewish history. Of particular importance within his purely academic works are those that deal with Judeo-Persian language and literary tradition at large, and with individual manuscripts, texts, and treaties in particular. Ever since the completion of his doctoral dissertation, Netzer published and edited well over two hundred articles, books, monographs, surveys, book reviews, and more.