As with all of Rykwert's books, I have found this one both knowledgeable and stimulating. The author confronts a problem I have tried to address in my courses in architectural history, namely the relation of architecture to the other arts, especially the privileged ones of painting and sculture. I am now retired, but earnestly wish I had had this book in earlier years!
In this age of "happenings," "installation art" and the like, some would say that questions of genre are obsolete, as everything is liminal and transitional. with one thing blending into another. However, I think that genre questions remain important.
Also (and this is my personal belief) in the early 21st century painting and sculpture and their congeners have lost their way. They are only of interest to a coterie. Not so architecture. We are privileged to live in one of the most exciting eras in the entire history of architecture!
I did note one omission in the opening discusson of advertising in the urban setting. That omission is Robert Venturi's seminal "Learning from Las Vegas," which deals among other things with the relation of signage to "sheds." Also, there could have been more illustrations, though these would raise the price of the book. As it is, the volume is both handsome and good value.