Two books by R. Baruch of Kosov – first editions. Bound together.

1. Yesod HaEmunah, commentaries on the Torah, Pirkei Avot and selections. Czernowitz: [Johann Eckhardt und Sohn, 1854]. First edition. 2. Amud HaAvodah, explanation of kabbalistic concepts. Czernowitz: [Johann Eckhardt und Sohn], 1854. First edition.

The author, R. Baruch of Kosov (Kosiv; d. 1782), served as maggid in Kosov. In his books, he quotes explanations and principles from the Baal Shem Tov, the Maggid of Mezeritch and their disciples.
The main part of the book is a clear, thorough explanation of many fundamental kabbalistic concepts, reminiscent of the style and approach of the kabbalist R. Yosef Irgas in his book Shomer Emunim.

Two books in one volume. Yesod HaEmunah: [3], 114, [1] leaves. Lacking first leaf of approbations following title page. Amud HaAvodah: [2], 5-6, 202 leaves. 23.5 cm. Fair-good condition. Many stains, including dampstains. Wear. Worming, affecting text. Tears, including open tears to title page and several other leaves, affecting text, repaired in part with paper (title page mounted on paper for reinforcement; handwritten replacement of several characters). Tape repairs to several leaves, over text. Stamps. New leather binding.