When a congregation creates its own prayer book, it demonstrates a commitment to its unique identity. In publishing our own book of prayers, we also devote considerable effort to offering an exceptionally meaningful worship experience for all who enter its doors. This newest edition of The Union Prayer Book stands firmly in Chicago Sinai Congregation's tradition, stretching back to 1861, of continually searching for the most fitting book of liturgy for our House of Prayer for All People. This book is a contemporary updating of the original Union Prayer Book published by the Central Conference of American Rabbis for the Reform Jewish community.