Better than good condition--No marks and the cover feels great. New York Times best seller---- The realization that the universe is a precision time piece. A time when angels, and devils mixed with the chaotic times of the end of the 17th century, great thinkers were writing great thoughts causing all to question everything. This is the struggle to bring new ideas to the world in an age when only few dared to think outside the box. Excellent center pictures on several colorful pages. Full index in the back.