For those not familiar with the event, the website has a good overview:
The Printers Row Lit Fest was founded in 1985 by the Near South Planning Board to attract visitors to the Printers Row neighborhood (once the city's bookmaking hub). By 2002, it had grown to five city blocks (on Dearborn, from Congress to Polk), attracting more than 200 booksellers from across the country displaying new, used and antiquarian books and featuring more than 200 authors participating in panels, discussions and a variety of other programs.
As part of its ongoing commitment to the written word and its support of literacy and literary endeavor, the Chicago Tribune purchased the Printers Row Book Fair in 2002 from the Near South Planning Board. Recently renamed to be the Printers Row Lit Fest, it is considered the largest free outdoor literary event in the Midwest-drawing more than 150,000 book lovers to the two-day showcase.
The event has a mix of free activities and ticketed events. This years special guests include R.L. Stine, Rick Bayless, Ethan Hawke and Buzz Aldrin to name a few.
If you've never been, we highly suggest checking it out!