Fred Skolnik, who served as a co-editor on the original edition of "Judaica", was retained as Editor-in-Chief for the 2nd edition. American Holocaust scholar Michael Berenbaum, adjunct professor of theology at the American Jewish University as well as director of its Sigi Ziering Institute: Exploring the Ethical and Religious Implications of the Holocaust, serves as the editor for the Holocaust and Americana sections of the encyclopedia and executive editor for the work at large. Judith Baskin, University of Oregon Judaic Studies department head, was brought on to supervise improvement of women's studies and gender issues coverage. In total, more than 50 divisional editors, including five winners of the Israel Prize, oversaw contributions from nearly 1,200 scholars and editors. The new edition contains more than 21,000 signed entries, including 2,600 brand-new entries and 12,000 changed entries.