Kol Bo Al Aveilus / כל בו על עבלות

A classic sefer on Hilchos Aveilus, Kol Bo Al Aveilus is back in print as 1 volume (orignally 3 seperate volumes).

Volume 1 covers all areas of aveilus, from death through the end of aveilus.

Volume 2, Shaalos U’teshuvos

Volume 3, Kesser Kehunah. Deals with kedushas kehunah -halachos pertinent to a Kohain regarding death and cemeteries.

Rav Greenwald learned in yeshivos in Hungary, including the Pressburg yeshiva under the Da’as Sofer. He received semicha from the Arugas Habosem. He was a Rav in Columbus, Ohio for 32 years, where he died in 1955. Rav Greenwald was a talmid chacham of stature and recognized as a master posek.