The text in the book “Libro d’Antonio Labacco appartenente a l’architettura nel qual si figurano alcune notabili antiquita di Roma” by Antonio Labacco starts each time with a heading, followed by a fairly short paragraph in a different font style with a different font size. The body text uses a gothic font and the heading a more formal font. The amount of text on each page is not particularly long. It seems to serve as an introduction to each new topic, which is then discussed in the drawings that follow. Overall, when you are looking at the different pages in the book, the text plays only a secondary role.
Each piece of text is accompanied by one or more different illustrations. These are either immediately below the text or take up a whole page. Typically, the first illustration of any chapter is the floor plan of a building, followed by an elevation or a section of the building that provides the element in more detail. Measurements are usually given on the side of the section or floor plan. The illustrations can either be general in nature, showing the entire facade of a building, or be of something specific such as a highly detailed part of a column, for example, the base.
Compared to the text, the illustrations take up a lot of space. It seems as if the text accompanies the illustrations and not the other way around. At the heart of the book are the illustrations and the precise documenting of the different architectural elements. The book is seemingly an academic study on how to build a perfect column in a perfect ancient temple and what the exact measurements have to be in order to create an ancient temple.