Chasidutחסידות
Avodat Yisraelעבודת ישראל
מחבר: ישראל הופשטיין מקוז'ניץAuthor: Israel Hopstein of Kozhnitz
One of the most complex and penetrating of the Chasidic classics. Authored by the Maggid of Kozhnitz, it draws heavily on his Kabbalistic knowledge.