Ballantine/Del Rey, New York, 2008, BCE.  ISBN 978-0-345-47021-8.  Hard cover, 299 pages.  Very light edge wear, spine ends bumped; binding sound.  Unpriced jacket has edge wear, some rubs and scratches, short tear at upper rear panel.  Book interior clean and unmarked with lightly tanning pages.  ‘… a story of one man’s mathematical obsession, and a celebration of the human spirit and the scientific method.  It is also a gripping intellectual thriller in which humanity, facing extermination from all-but-omnipotent aliens, the Grand Galactics, must overcome differences of politics and religion and come together … or perish.’ (from front flap)