1921: The Yankees, the Giants, and the Battle for Baseball Supremacy in New York by Lyle Spatz and Steve Steinberg tells the story of the New York baseball at the dawn of the roaring twenties and the first all–New York Series that resulted in the first American League pennant for the now-storied Yankees’ franchise. 

Last Sunday, Steve Steinberg talked about 1921 on the blog talk radio show New York Baseball Digest, hosted by Mike Silva. Listen to their discussion at the blog site. Steinberg doesn't come on until about six minutes into the recording.