Abstract: Supported by data and funding from C-Dem, the purpose of Big Worlds Second Edition is to update 2016’s Big Worlds: Politics and Elections in the Canadian Provinces and Territories with new data, a revised contributor roster and up-to-date depictions of the respective provincial political landscapes. The collection will continue to be inspired by Christopher Dunn’s lament that “there has clearly been an ebb from the high tide of comparative provincial studies in the 1970s and early 1980s” (2001: 441). Since 2016 much has changed in the political world that provides reason for an updated examination of provincial politics. The rise of populism, the global COVID-19 pandemic and major upheavals in provincial party systems and leadership have contributed to a dramatic decade in provincial politics since the initial prospectus for the first edition was written in 2013. The roundtable will feature select contributors to the collection with a discussion of the provincial politics and elections with a focus on the province’s political culture, party system and the most recent provincial/territorial election.