This is the cover of a volume from the Siku Quanshu (Complete Library in Four Sections), featuring a traditional blue silk binding style with a white title slip.

A traditional Chinese book cover in deep blue. On the left side, there is a vertical white rectangular title slip (zhai) bordered by a thin blue line. Inside the slip, handwritten calligraphic characters in dark blue ink run vertically. To the right, the edge of the book shows white thread binding stitches.

Complete Library in Four Sections original: "Siku Quanshu"