The author of this article summarizes which, when, where, and how students take introductory economics. Among students who began college in 2012, 74 percent never took economics, up from 62 percent in 2004. Fifteen percent of beginning college students in 2012 took "some economics," and 12 percent were "one-and-done" students. About half of introductory economics students never took another economics class, and only about 2 percent majored in economics. The characteristics of "one-and-done" and "some economics" students are generally similar and closer to one another than to students with "no economics." The implication is that efforts to diversify the profession should focus at least in part on attracting students who would otherwise not take introductory economics.