Brian Greene: The Elegant Universe (2003) 4 stars

The Elegant Universe: Superstrings, Hidden Dimensions, and the Quest for the Ultimate Theory is a …

Review of 'The Elegant Universe' on 'Goodreads'

4 stars

It's been awhile since I read it, but I remember it having a definitely stringy bias (it's even in the title), so not the first place to go for a neutral over-view of approaches to quantum gravity if you are looking for that sort of thing.