The eight papers making up this special issue on promoting women in mathematics consider the underrepresentation of women in mathematics and the experiences and observations of authors who are immersed in this work. In this editorial, we identify common themes we see across many of these papers, framing our discussion with the "social identity framework of mathematical development" presented in the first paper. This framework consists of three beliefs conducive to the pursuit of mathematics, and we discuss how the authors address each of these beliefs in their work. We also present data to illustrate that the underrepresentation of women in mathematics continues to be an issue, and we hope the papers in this issue will be informative for others who want to lead gender-based initiatives.