Contains many extra photos and charts that were not in earlier editions. Dust jacket is a bit tattered but the book itself is in very good condition. I'm not an expert collector so I don't know official book condition grading but there are no loose pages, no tears that I can find, and the only discoloration I see is a tiny bit on top corner of the last few page. The binding looks solid. Dust jacket has several tears and creases. It is in a protective cover to prevent further deterioration. Lord signed it for me personally in Clearwater, FL in 1994 after a presentation he gave at a public library where I worked. See on eBay or contact me privately.