You are considering whether to buy a product. You look at the reviews. Would the following review decrease or increase the chances of you buying the product?
Review title: A classic - and cheap
Product review: This is the books so many people REALLY learned differential geometry from. The advantage of the index methods is that you can really see what is going on. If you are going to do GR and actually use DG for something other than pure math I think you will love this book.BTW I think you can get it free on the internet arxiv but the print copy is very good quality.
