"Archaeologist Genevieve von Petzinger looks past the horses, bison, ibex, and faceless humans in the ancient paintings and instead focuses on the abstract geometric images that accompany them. She offers her research on the terse symbols that appear more often than any other kinds of figures--signs that have never really been studied or explained until now"-- "One of the most significant works on our evolutionary ancestry since Richard Leakey's...

"An award-winning author and veteran mountain climber takes us deep into the Southwest backcountry to uncover secrets of its ancient inhabitants. In The Lost World of the Old Ones, David Roberts expands and updates the research from his 1996 classic, In Search of the Old Ones. As he elucidates startling archaeological breakthroughs, Roberts also recounts his past twenty years of far-flung exploits in search of spectacular prehistoric ruins and rock-art...