Amir Sufi, professor of finance at the University of Chicago Booth School of Business, speaks Sept. 28 at 10:30 a.m. at the Ethical Humanist Society of Chicago, 7574 N. Lincoln Ave. in Skokie.

In “House of Debt: How We All Caused the Great Recession.” Sufi will discuss his theory about the causes of the financial crisis of 2008 and how the next one can be prevented.

A coffee hour follows the talk. For more information, visit ethicalhuman.org.