Just as a writer uses nouns, verbs, and adjectives, an architect uses columns, walls, windows, and roofs. In the PDF, you likely saw how these elements are the "building blocks" of style.
Most free copies come from university archives scanned in 2004. The bindings were broken, so the scanner chopped off the inner margin. You cannot read the captions on the left side of the plate. A "fixed" PDF re-centers the scan or stitches the pages properly. the grammar of architecture pdf fixed