        Chemistry would probably be useful, as well as physics.  If they used a periodic table, they could probably figure out the elements.  Books on biology.  Show them everything we’d discovered.  Show them that we were a curious race.  A book on the wonders of the world—maybe not the traditional seven wonders, but more modern ones.  Tall buildings, inspiring bridges—what about art?  Would these aliens appreciate the detail of the ceiling of the Sistine Chapel?  Would they understand the magnitude of Mount Rushmore?