We're giving away tickets to the event at the beer garden atop the Free Library.
Craft beer rock star Sam Calagione has collaborated with the Penn prof on Dogfish Head Brewery's "Ancient Ales" for the past 16 years.
Everything you need to know about Philly, every day
Billy Penn runs on reader support
Billy Penn runs on reader donations
Lock in your support with a monthly membership
Billy Penn works because of your support