Talmud Bavli in one volume, with Rashi and Tosfos in the original form of the page. With 4 Gemara pages printed on each page, in a way that can be learned in the original form of the Gemara.

This Shas is convenient for reference, when the entire Shas is in one volume. And in addition, there are bookmarks at the top of the book and on the cover to help find the desired tractate.