Publisher: Kehot Publication Society
Compiled by: Rabbi Yosef Yitzchak Alperowitz
Format: 6" x 9" Hardcover, 664 pages
Language: Hebrew

The Or Hatfillah series elucidates the meaning of the prayer liturgy according to Chabad chasidic teachings.

Volume 4 covers L'Shem Yichud - Yehi Chevod