This chapter explores how relations between seeing and knowing are articulated in efforts to promote “visual analytics”: the practice of extracting insights from large datasets with the help of on-screen, interactive displays of trends, outliers and other patterns. The focus is on online seminars organized by a software vendor, in which experienced business users demonstrate their practices to a less experienced audience. The chapter discusses how the idea that visual analytics can “reveal” insights is both manifested and qualified on these occasions. The user practices on display convey to audiences the impression that specific insights inhere in data and can be visually apprehended. Paradoxically, the demonstrations simultaneously render such insights conditional and elusive. The chapter characterizes this paradox as “artful revelation,” and proposes that it is rhetorically powerful in helping to foster imaginaries of, and investments in, data-driven discovery.