DIVA-Day is an annual symposium to discuss the use of environmental analysis tools in design practice, research and architectural education. The full-day event will include a series of presentations and discussions, focused on how DIVA and associated simulation tools can be used in design and performance-evaluation workflows. Previous events were in 2016 at the University of Toronto, 2015 at the Architecture Association in London, 2014 at the University of Washington, 2013 at Thornton Tomasetti's offices in New York and 2012 at MIT. This year, we will be hosted by the Center for the Built Environment at the University of California Berkeley. The event will take place on Friday, October 27, with a full day of DIVA training on October 28. As in previous years, we will be holding a student competition with the winning team having the opportunity to present at DIVA Day. Stay tuned for more information.