R. Yechiel Mikhel Tukaczinsky‘s three-volume Gesher Ha-Chaim is a classic work on the laws of mourning. When a friend in yeshiva lost a parent, I asked him whether he preferred Gesher Ha-Chaim or Pnei Barukh, which was later translated and published by Artscroll. He liked Gesher Ha-Chaim better because it doesn’t just give multiple opinions (some say this and some say that) but tells you which you should preferably follow. The three volumes are available for free on HebrewBooks.org: I, II, III.
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