Shnei Luchot HaBrit HaMenukad veha'Mefuar (4 vol.)

Essays on the Torah, Gemara, Kabbalah, the Hebrew Letters, Dinim and Musar. Written in the 1600`s by Rabbi Yeshaya Segal Horowitz (ha-Shela ha-Kadosh).
A new edition; edited, punctuated, and anotated, with explanations, comments and sources by Rabbi Meir Katz. (with many haskamot by current great rabbbis)
With hagahot by the Chidah.