Engineering and science have historically been mostly male—overwhelmingly so, until very recently. When Joan arrived at MIT, the percentage of women students was about 16%, and it had risen to about 20% by the time she graduated. This chapter starts with Joan’s viewpoint of how this disparity has played out, talks about some statistics, and discusses some projects that are attempting to attract more female makers. There are probably as many hypotheses about why women turn away from math, science, and engineering as there are female technologists. Joan will explore a few of her hypotheses in the next section.