Czechs and Slovaks resource in Illinois

Is Grace DuMelle, genealogist and longtime "genealogy and local history assistant" at the Newberry Library, warming up for another Chicago genealogy book? In the Newberry blog she calls attention to a little-known resource: "Tucked away on a side street in Cicero, Illinois is a treasure trove of materials relating to Eastern European heritage and the impact of its peoples' immigration to Chicago, the Midwest, and beyond. It's the library of the Czech and Slovak American Genealogical Society of Illinois (CSAGSI)." Read the whole thing.