Diana Castillo and Kelly McElroy write: “While unions have long existed for library workers in public, academic, and school workplaces, this is an unusual moment after decades of stagnant union membership. Several significant campaigns representing library workers occurred in 2021, including several that came out of shifts in institutional policy or state law making it easier to organize. Whether or not these positive trends continue, 2022 offers an opportunity to reflect on organized labor in libraries.”