The Postcard History Series book by Jim Edwards Chicago’s Opulent Age in Vintage Postcards, gives the history of Chicago from the 1870s to the 1940s. My favorite chapter was “Soaring into the Sky” about all the skyscrapers and their architects. There was a long chapter about the Chicago opera which was kind of a snoozefest for me, as I am not into opera. There were a couple typos here and there as well. But the content of the book was good because it was diversified. It talked about buildings, parks, culture, and amusements.