Encyclopedia of Chicago
I saw this previewed at the bookstore last weekend.

From the ChicagoBloggers Yahoo Group today:

More than a decade in development and running to more than 1,100 pages the Encyclopedia is the most comprehensive book ever published on the City of Big Shoulders. The website has a wealth of information including some gorgeous sample pages.

And to celebrate, the Encyclopedia will be publicly unveiled at a pro-am city-wide trivia contest on Wednesday October 6. Hosted by NPR's Peter Sagal, with celebrity contestants Eric Zorn, Scott Simon, Carol Moseley Braun, and a few other surprise guests, the event will take place in the Auditorium of the Harold Washington Library and it will run from 6:00 to 7:30 pm.

And I'm going to be working at a client site downtown tomorrow during the day. I'd like to see this.

More detailed info on the book