Learning and mastering Hilchot Eruvin is a daunting challenge. Walking the Line: Hilchot Eruvin from the Sources to the Streets sets forth a practical path to conquer this challenge by bringing Hilchot Eruvin to life. The product of over thirty years of experience helping communities design and maintain their eruvin, Rabbi Chaim Jachter demonstrates how the concepts of Hilchot Eruvin are applied in the field. This work is an indispensable guide for anyone interested in eruvin, whether they are learning the masechet, the Halachah, or are simply interested in helping their community create, expand, or maintain its eruv.