Rabbi Yechiel Yitzchok Perr is the Rosh Yeshiva of Yeshiva Derech Ayson of Far Rockaway, a position he has held for more than half a century. Rabbi Perr is a talmid of Hagaon Harav Aharon Kotler zt"l, as well as the son-in-law of Hagaon Harav Yehudah Leib Nekritz zt"l and grandson-in-law of Hagaon Harav Avraham Yaffen zt'L, the son-in-law of the Alter of Novaradok zt"l. Rabbi Perr has spent decades imbibing, studying, and teaching the works and legacy of the Alter and his talmidim. Rabbi Perr's daily va'adim in Sefer Madreigas Ha'adam (the work recording the discourses of the Alter of Novaradok), and other mussar works, are widely disseminated among his many talmidim and listeners the world over.