The blog post focuses on typography, that is typefaces, specifically those designed and created by Erhard Ratdolt (1442–1528), a Renaissance Typographer. He flourished in Venice where printing was an active and lucrative trade. The Heilbrunn Timeline of Art has an article about Ratdolt's printed work http://www.metmuseum.org/toah/works-of-art/17.45
And you can find an example here http://www.metmuseum.org/toah/images/h2/h2_17.45.jpg
Careful examination of layout and design provide clues for how the page was composed and illustrations added. In Ratdolt's work, illustrations were either printed at the same type as the page using woodcuts that were colored later, or painted by hand afterward.
Ratdolt is most famous for printed work of Euclid http://www.sunsite.ubc.ca/DigitalMathArchive/Ratdolt/page1min.html There are not only beautiful borders framing three sides of the text, but also mathematical diagrams in the fore-edge margin, all printed at the same time.

For more information on Renaissance printers, check out "Typography & Graphic Design — Renaissance to Rococo Era" (History of Graphic Arts by Paula DiMarco, Ph.D., California State U Northridge course on typography) : http://www.csun.edu/~pjd77408/DrD/Art461/LecturesAll/Lectures/lecture03a.html