Although he wrote his commentary on all four sections of the Shulhan 'Arukh, only the sections on 'Orah Hayyim and Yoreh De'ah were initially printed. The remaining sections, which were published many years after his death, appear only in the outer margins of the standard Shulhan 'Arukh editions.
The title "Turei Zahav" means "columns of gold." It does not provide a running commentary to the whole Shulhan 'Arukh, but focuses on specific issues. It contains many disagreements with Falk's Sefer Me'irat 'Einayim.
This commentary (the title means "enlightening of the eyes") was composed by Rabbi Joshua Falk, author of the Perishah and Derishah comments to the 'Arba'ah Turim. More precisely, and it is an extension of the same project. In effect, he was trying to subvert the exclusive authority of the Shulhan 'Arukh by drawing attention to the sources or its rulings, and thereby encourage people to study the original texts. In some cases this leads him to disagreements with Caro and Isserles.
Falk worked to establish an accurate text of the Shulhan 'Arukh, and especially of Isserles' glosses, for which he possessed a copy of the author's original manuscript. He strove, not always, convicingly, to minimize the differences between Caro's and Isserles' opinions. He adds laws that had been formulated in recent generations, including some of his own.
The author died before completing the commentary. It concludes at Paragraph #126.