Women in Machine Learning will be organizing the first “un-workshop” at ICML 2020. This is a new event format that encourages interaction between participants. The un-workshop is based on the concept of an “un-conference”, a form of discussion on a pre-selected topic that is primarily driven by participants. Different from the long-running WiML Workshop, the un-workshop’s main focus is topical breakout sessions, with short invited talks and casual, informal poster presentations.