Rabbi Lifschitz’s works based on Shiurim he delivered to a group of Avrechim at the Mirrer Yeshiva on prayer matters, which includes 17 shiurim on prayer as a whole, 35 shiurim to explain each and every part of prayer, and every word of the Shmonei Esrei, 7 shiurim on Birchas HaNehenin, and Birchas HaTorah, 11 shiurim on the Tefillos of Yamim Noraim and Teshuva.