The book Architectura by Gabriel Kramer is a very thin books that include only images and no index or text of some sort. The images (30 in total ca) are very beautiful hand-drawings with a lot of details on them.
The book is published in 1606 and is a Saulenbücher, (the title “Architectura”is very common for Saulenbücher); the author is not a cultured person, instead was a carpenter from Zürich and the aim of the book was to explain with drawings the architecture of the 5 orders.
In the book we can see very beautiful drawings of doric, ionic, corinthian, tuscan and composite columns, the drawing are emphasising the characteristic of the different orders. So, the author is trying to explain the classical architecture of antiquity but his drawings have way too details and ornaments compare whit the real architecture of the 5 orders. The result is that consulting this book you have the feeling that you can build whatever you want and call it architecture of the 5 orders.