This is a really good book with very clearly delineated objectives. It explains Heidegger's main concepts from "Sein und Zeit" and other writings as well. I liked that fact that Steiner focused mainly in Heidegger's ontology, but also found a good balance and mentioned Heidegger's historical context, and his behaviour towards nazism.
It was a true pleasure to remember the things I learned while I was at university in a clear and concise text.
Towards the end of the book George Steiner saves a couple of paragraphs to present his own subjective interpretation of what he thinks Heidegger's work means, which I found extremely interesting. ( )

If you are looking for a book that contextualizes Heidegger in the wider intellectual setting ( Sitz im Leben ) in which he operated, this is an excellent place to start. It focuses on his influences and what he was trying to accomplish. However, if you are looking for a book that introduces you to Heidegger's thinking for the first time, it is a very poor place to start. For that I would recommend Heidegger (The Routledge Philosophers) ( http://www.librarything.com/work/12426919/book/96599963 ) ( )