Curator, Deborah Wye: Printmaking was something that Bourgeois could do at home, because she had bought herself a very small printing press that she kept in her apartment. She could take a little copper plate and she could put that copper plate on the edge of a table and work on it as she still kept an eye on her children playing. Some printmaking techniques require acid, and that can be dangerous. So she diluted the acid in her pan to almost being the level of vinegar, just in case the children happened to put their hand in the pan.