The Art of Solidarity delves into the rich tapestry of labour arts and heritage in Canada—from protest music and union banners, to murals, community theatre, and oral histories, to workers' history museums and arts festivals—showcasing how these expressions of working people's culture have been essential to challenging inequality and fostering solidarity. This inspiring collection highlights the resilience and creativity of labour arts and heritage practitioners who, despite financial and organizational challenges, continue to amplify the voices and experiences of working-class communities. In an economy characterized by growing polarization, inequality, precarity, and uncertainty about the future and meaning of work, labour arts and heritage has a central role to play in providing answers that challenge the prevailing narratives about whose work matters and whose efforts are central to our communities' wellbeing. This work is more important than ever before.