Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Rabbi Yaakov Yitzchak Horowitz is one of North America''s foremost experts on the intricate art of kosher food production and a key part of Manischewitz, the continent''s leading kosher brand (MacLean''s 12/08/2008). He serves as chief supervising rabbi of the Manischewitz group of companies on behalf of the Orthodox Union. Rabbi Horowitz is a fourth generation American Chasidic rabbi, a scion of the Bostoner Chasidic Dynasty and the founder of the American Jewish Legacy, a nonprofit research organization that promotes Jewish heritage in the United States. Rabbi Horowitz is also an educator, pulpit rabbi and lecturer on the American Jewish experience. He is a noted expert in Jewish law as regards the Kosher Code especially the production of Matzo for Passover.