As a lover of old houses, it's nice to see this sort of thing discussed. A few minor quibbles:<p>The article (though fortunately not the poster/infographic) mentions the "Victorian" style. Victorian is an era during which multiple housing styles were popular -- Queen Anne, Stick, Shingle, etc.<p>The stylized drawings, especially in the infographic, really obscure the characteristics of some of the styles. The Italianate drawing, for example, barely resembles the real thing.<p>Finally, the article and sources fail to mention that few houses truly represent one specific style. Typically, only architect-designed homes (built by the rich-n-famous) or kit homes (<a href="https://en.wikipedia.org/wiki/Kit_houses_in_North_America" rel="nofollow">https://en.wikipedia.org/wiki/Kit_houses_in_North_America</a>) would really fit a specific style. Lots of homes of that era are best described as "vernacular" and combine elements of multiple styles. You then end up classifying it based on the predominant features. For example, I live in a home built in the 1890s that has a mix of Queen Anne, shingle, and stick elements. Though, my last home was a spot-on American Foursquare.<p>Nicely, the article references the McAlester book. It is the best resource I've found for classifying old houses. I have the older edition, authored by Virginia and Lee so I can't speak to the contents of the new edition. If you want some "old house porn" check out the Painted Lady series of books, too.