The Encyclopaedia of Judaism provides a full and reliable account of Judaism, beginning in ancient Israelite times and extending to our own day. About Judaism, the religion, its diverse history, literature, beliefs past and present, observances and practices, and place in the context of society and culture, this is what we know. All principal topics required for the systematic description of Judaism as a religion the world view, way of life, theory of the social entity constituted by the faithful are addressed here. The Encyclopaedia of Judaism provides a definitive account of contemporary Judaism and a reliable picture of a tradition of nearly four thousand years. A full and detailed index provides ready reference for facts, and the systematic articles set forth highly readable accounts of the entire range of Judaic systems of belief and behavior put forth over time and in our own time. It is written for people from all backgrounds, scholars and general readers alike. When the editors completed the initial three volumes of The Encyclopaedia of Judaism, they found satisfaction in having covered the more than one hundred topics. But they also realized that many other important topics remained to be set forth in a systematic way. This led to new inquiries into the history, practices, and theology of the religion, Judaism. Specialists in all these fields were found and the result is more than ninety new studies, of which the first thirty two are in the present volume. Supplement Two is anticipated for 2003, and Supplement Three, for 2004.