For almost two decades, the Prairie School for Union Women (PSUW) has operated in Saskatchewan, Canada. Its use of feminist popular education, adult learning principles in facilitation, and mentoring and support for activist practices make it unique from other labour schools in many respects. This paper focuses on a community-based participatory action research study that explored how well the PSUW is meeting its goals to "develop women's personal and leadership skills, to build solidarity among women workers, and to increase knowledge about the labour movement." The article documents how the school achieves its goals and how it offers lessons in labour education, activism, non-formal adult learning, intersectional approaches, feminist popular education, university-community relationships, and transformative education.