South Side Pie Challenge. 2-5 p.m., Hyde Park Neighborhood Club, 5480 S. Kenwood Ave., $25 registration fee. Register online at southsidepie.wordpress.com. Pie drop off is from 11 a.m. to noon, with tasting from 2-5 p.m.(…)
Author Talk. 6 p.m., 57th Street Books, 1301 E. 57th St., 773-684-1300. Dan Pashman, author of “Eat More Better: How to Make Every Bit More Delicious,” presents.
Performance. 8 p.m., Cobb Lecture Hall, room 306, 5811 S. Ellis Ave., 773-834-8524, free. Poet LaTasha N. Nevada Diggs presents.
Concert. “The Gailileo Project: Music of the Spheres.” 7:30 p.m., Logan Center, performance hall, 915 E. 60th St., 773-702-2787, $35 general admission, $5 students. Canadian period instrument orchestra Tafelmusik performs. To buy tickets, visit ticketsweb.uchicago.edu.
Book Salon. “Imagining the Edgy City.” 3:30-6 p.m., Wilder House, 5811 S. Kenwood Ave., 773-702-0230. Focusing on Loren Kruger’s book by the same title.
Talk. “Avoiding a Nuclear Iran.” 6 p.m., Harris School of Public Policy, 1155 E. 60th St., 773-834-4671, free. With Gary Samore, former White House Coordinator for Arms Control to President Barack Obama, and David Sanger,(…)
Knitting Class. 10 a.m., Blackstone Library, 4944 S. Lake Park Ave., 312-747-0511.
Author Talk. 6 p.m., Seminary Co-op Bookstore, 5751 S. Woodlawn Ave., 773-752-4381. Jess Row, author of “Your Face in Mine,” presents.