Foreword by mathematician Ioannis Argyros , Professor at Cameron University, USA.

The second volume contains the commentary on the 48 propositions of the first book of the "Elements", and is divided into two chapters.

The first chapter contains the ancient text, which consists of two parts. The first part contains propositions 1 - 26, which are the continuation of the third book of the present work of Proclus , and the second part contains propositions 27 - 48 which constitute the fourth book.

The second chapter contains the rendering in modern Greek with clarifications and comments.