Space Time Matter Book

I give this book 5/5 stars for the intrinsic intellectual tour-de-force masterpiece that it represents and for historical interest of this work. However, I do not recommend it for those who are learning relativity theory. This is not an appropriate exposition. It's a heavily difficult philosophical-mathematical-physical investigation, obviously written in style that is too hard for this generation to follow, unfortunately. It's too deep and too rich in content, but obscure in many aspects. If you want to dive into Weyl's genius, it is a gem. Otherwise, it's frustrating. I feel a mixture of both. I look forward to return to this book, nevertheless.