Availability: Ships 2-3 days Comments: This work is based on a series of lectures given by Stephen Hawking and Roger Penrose. In the book they expound their opposing views on the possibility of combining two theories of physics: Einstein's theory of relativity and the quantum theory of fields.
Availability: Ships 2-3 days Comments: The book has been read but is in good condition. It has very minimal damage to the cover including scuff marks but no holes or tears. The dust jacket for hard covers may not be included. The binding has minimal wear. The majority of pages are undamaged with minimal creasing or tearing minimal pencil underlining of text no highlighting of text and no writing in the margins. There are no missing pages. See the seller's listing for full details and a description of any imperfections.