Developed from presentations at the 2018 International Writing Across the Curriculum conference, this collection documents a key moment in the history of WAC, foregrounding connection and diversity as keys to the sustainability of the WAC movement in the face of new and long-standing challenges. Contributors reflect on the history and ongoing evolution of WAC, honoring grassroots efforts while establishing a more unified structure of collaborative leadership and mentorship. The chapters in this collection offer a rich variety of practices, pedagogies, mindsets, and methodologies for readers who are invested in using writing in a wide range of institutional and disciplinary contexts. Boldly engaging such pressing topics as translingualism, anti-racism, emotional labor, and learning analytics, the eighteen chapters collected here testify to WAC's durability, persistence, and resilience in an ever-changing educational landscape.