The open letter calls on art institutions to remove offenders and confront inequality and abuse. “Your actions will no longer be a secret, whispered amongst us for fear of ostracization, professional shunning, and recrimination. Where we see the abuse of power, we resolve to speak out.”

The letter emerged out of a group WhatsApp chat among ten members of the art community Oct. 24. Within 24 hours, the number of participants had ballooned to more than 125. “The idea came very quickly to draft this letter. It was amazing to witness this huge group of people across different continents formulating this letter together,” said Vanessa Carlos, a co-founder of the London gallery Carlos/Ishikawa, who was on the original group chat. “There are a lot of stories that women shared in the WhatsApp group, and a lot of them are not ready to come forward publicly. It was really hurtful to know that they still didn’t feel they could come forward, even in the current conversation.”

The letter also announces the start of an online campaign, Not Surprised, across Facebook, Twitter and Instagram. “This is really an initial step of what most people have expressed desire to be a longer-term engagement,” Ruba Katrib, who is curator at MoMA PS1 and signed the letter, said. “There’s a real recognition that needs to take place that this is an actual problem and affects a huge percentage of people working in the contemporary art industry.”