Nicole M. Joseph investigates factors that contribute to the glaring underrepresentation of Black female students in mathematics. Joseph's account calls attention to educational structures and practices that contribute to race- and gender-based stratification in science, technology, engineering, and mathematics. In her assessment of the intersectional difficulties facing this marginalized group, Joseph offers a critical view of the existing mathematics education research, practice, and policies that have neglected Black girls and women; confronts the problematic history of mathematics education policy; and considers imbalances in the current teacher workforce in United States mathematics programs. She then provides suggestions for reform. Joseph invites students, families, and educators, as well as researchers, policy makers, and other relevant stakeholders to disrupt systems, structures, and ideologies. She calls for an end to racism and sexism in many areas of mathematics education. A must-listen for anyone concerned about supporting the mathematical learning and development of Black girls and women, this work advocates for coalition-building so that greater, more equitable opportunities for learning and engagement may be offered to Black female students.