This is the worst translation on the great work of Euclid I have read....The author being a BA student, explains things in such a way that he gives the reader the impression that he is better than Euclid...And some of the basic definitions given by Euclid are altered based on the author's convinience which are erroneous...I have read the other translations by authors such as Heath and Howard which are far close to the original text of Euclid..In short, its better to stay away from a book which gives you misleading information on, well, everything Euclid said...Worst author who self brags about himself...