Let me preface this review by stating that I am not reviewing Euclid's Elements - a book so fundamental to our mathematical framework - but rather Oliver Byrne's work of illustrating his first six books. Still, being the first time that I looked at Euclid's work, I found it to be more enjoyable and accessible than I would have thought.
This is a must have for any math geek out there, the quality of the book outweigh greatly the cost, in my opinion, and most of the proofs do benefit from the illustrative approach. The pages are sturdy and the writing is minimal leaving all the room to the visual interpretation.
However it doesn't work at the same level for all of Euclid's work. I tought Book I-III did an exceptionnal job of setting the foundation of a curriculum that is still mostly followed more than 2 millenia later.
Book IV eased most of the comprehensive proofs, but failed in my opinion to digest correctly some of the harder ones. That's not to say that there's a better way to illustrate it, only that visuals only go so far.
Book V was the weakest, only because it enhanced very little of Euclid's work being a algebra focused book; and Book VI was a mixed bag similar to Book IV.
Still, if you a have a love for mathematics you are going to find a theorem every few pages that reminds you of one that you may have known on simpler terms or named differently.
A small note on the second part which criticizes Byrne's work through a pure philosophical approach (in three different languages I must say) - I feel very uninformed about the reason why it is there, but at face value it felt lukewarm and redundant.
Still amazing work.