„Traité Des Pratiqves Geometrales Et Perspectives“, a book by Abraham Bosse, contains on one hand continuous texts and on the other hand hand drawn illustrations. It consists of two parts. The main focus of the book lays on its text, the illustrations are for further explanation. The book is structured in different chapters in which Abraham Bosse introduces, in a text, different subjects geometrical forms and perspectives for example. The number of the page is always at the top of every page, the first letter of the chapter is always bigger and can be decorated and the different chapters don’t always start on the top of the page, they also start just in the middle for example. It has also decoration to part two sections of text. At first there are many pages of pure text as an introduction with the table of contents. Through a white page and an introductory illustration, the specific part of the book starts with illustrations that fit a whole page which are numbered at the top edge. Every illustration has its own text of explanation (also numbered).
There is always a text margin on the outer side of the book and on the top and the bottom.
There are also some illustrations that have to be read sideways. If the illustration is sideways, also the explanation will be sideways. At the very start and the very end of the book there are also two illustrations. The last illustration fits on two whole pages.