PurposeThis article shares an academic library's transition from traditional reference services to a peer support model during a campus reopening post-COVID-19 closure. It examines the conception, implementation and implications of the Peer Mentor program amidst shifts in campus priorities, Library research and reference paradigms and the Library workforce, from the perspectives of library faculty and staff, alongside feedback from student workers.Design/methodology/approachThe article uses a case study approach to detail the Library's Peer Mentor Program by authors involved in various stages of the program's lifespan and discusses the beginnings, implementations and challenges of the program and introduces the unique curriculum used to train student Peer Mentors.FindingsThe authors chronicle their own experience after two semesters of the Peer Mentor program alongside qualitative feedback from the first cohort of Peer Mentors. The Peer Mentor feedback points to positive impacts in other academic pursuits and in gaining a greater understanding of the information landscape and the library field.Originality/valueThe case study presented is a valuable example for academic librarians considering beginning peer-to-peer learning models within their own research and reference services units, especially those who may be creating these peer learning networks in the wake of library service disruption or restructure (such as due to the COVID-19 pandemic).