Doubleday, Toronto, 1998, 1^st paperback pr. thus.  ISBN 0-385-25828-3.  Trade soft cover, 578 pages including References, Selected Bibliography, and Index.  Very good; wraps show some edge and cover wear, bit of wrinkling to laminate at fore-edges; binding sound with light reading creases on spine.  Interior clean and unmarked with tanning pages; black & white photo plate sections.  ‘... Hancock embarks on a worldwide quest to put together all the pieces of the vast and fascinating jigsaw of mankind’s hidden past.  In ancient monuments as far apart as Egypt’s Great Sphinx, the strange Andean ruins of Tiahuanaco, and Mexico’s awe-inspiring Temples of the Sun and Moon, he reveals not only the clear fingerprints of an as-yet-unidentified civilization of remote antiquity, but also startling evidence of its vast sophistication, technological advancement, and evolved scientific knowledge.’ (from rear wrap)