Rav Yissochor Dov (ben Shaul) Rubin, author of Tallelei Oros (1962-2008). After learning at Yeshiva L’tze’irim Ruzhin in Bnei Brak, he joined the Ponevezh Yeshiva and later continued his studies in the Kollel Avreichim of Yeshivas Ponevezh. He was hired as a maggid shiur in Yeshiva Karlin Stolin L’tze’irim and later as mashgiach in Yeshivas Beis Chilkiya. In 1988, he began writing his divrei Torah on the parsha which was printed weekly in Yated Neeman. Thus began the seeds for his sefer, Tallelei Oros on the Parsha.
Thereafter came volumes on Sukkos, Pesach, Purim, Tisha B’av, and the Yomim Noraim. In the last few years, Rav Yissochor Dov invested much effort in publishing the Tallelei Oros on tefilla-prayer. He produced five volumes. In addition to these seforim, Rav Yissochor Dov also published Sefer Oros HaGra, as well as the popular version of Sefer Nefesh Hachaim with his elucidations, footnotes, and references. He also (anonymously) printed two volumes of Sefas Emes al Hatefilla.