As the 73rd National Book Awards kicked off at the swanky Cipriani Wall Street in New York City, unionized HarperCollins employees took their strike to the sidewalks surrounding the venue. As guests lined up to grace the NBA’s red carpet, they were greeted by HC union members who offered information on worker rights, fair wages, and buttons to show support for their cause.

Employees in the HC union have been on an indefinite strike since Nov. 10 after working without a contract since April. Negotiations with the publisher reportedly broke down over raising base pay for workers, said Local 2110 UAW president Olga Brudastova. The publisher has been radio silent since and has not initiated another round of negotiations, she added.