Insignium Romae templorum prospectus exteriores interioresque a celebrioribus architectis inventi by Rossi, Giovanni Giacomo:
How is the text composed and organized on the pages (e.g. columns, headings, margins, font size and type)?
The whole book contains only very little text. Compared to the copper printed illustrations the text takes up relatively little space and is placed above or beyond the illustrations. on most pages there is no text at all. The few parts of text are organized in sentences written in large capital letters accompanied with some words beyond in a different font and font size.
What kind of illustrations accompany the text (e.g. architectural drawings, perspective views, details, schematics)?
It would be more accurate to say that the images are accompanied by text. The text act as short description of the copper printed drawings of views, sections, perspective views and floor plans of selected temples and churches.
How are images presented and organized in the book (e.g. in-text, full-page, foldout spreads, together at the end of the book, scattered throughout)?
The illustrations are full-page and are only printed on one site of the pages. So, there is always a plain page between two illustrations. A margin has been left around all of the illustrations. Certain illustrations are framed, and some have been printed on different paper and then glued into the book. A few of them are even too large to fit into the book, so they have been glued and folded.
Are the images numbered and/or referenced? If so, how (e.g. list of contents, commentary…)?
Either the illustrations nor the pages are numbered or labeled.
How much space/importance do images occupy compared to the text?
The images fill out the whole page, while the text takes up relatively little space and is placed above or beyond the illustrations.