Julien Blanc travels the world teaching men how to pick up women. Videos and social media material show that he encourages men to harass, violate and make women feel terrible.
Blanc works with the international pick-up artist collective Real Social Dynamics, and in expensive online courses and free public workshops, he and other pick-up artists instruct men on how to manipulate women into having sex with them.
He has deployed his "techniques" in Denmark, Germany, Greece, and many other countries, posting pictures of himself #ChokingGirlsAroundTheWorld.
Some Australians have now joined together to start #TakeDownJulienBlanc, which calls on venues to cancel events on his tour.
If there was any doubt about the damaging nature of his methods, Blanc uploaded a domestic violence chart to Instagram with the caption "May as well be a checklist... #HowToMakeHerStay".
Blanc arrived in Sydney last week and has held at least one public workshop. Social media users have rallied to make sure he does not hold another.
A petition quickly gathered thousands of signatures calling for The Como hotel in Melbourne to cancel his workshop.
Somayya Shazia was one of the Australians who rallied around the #TakeDownJulienBlanc campaign.
"What disturbs me is that he and his company are profiting from promoting rape culture and instructing men how to terrorise and assault women," she told BuzzFeed News.
"The company's attitude towards sexual assault is simply sickening. I want these venues to cancel his seminars as they are designed to actively promote sexual violence."