Sitchin provides a quite plausible explanation to what the ancients knew and what we are now discovering. He explains how modern man's mysteries (pyramids, Nazca lines, Mars features, etc.) were put there by the ancient "alien" race that colonized Earth. He intelligently puts it all together.
I loved this book, but I;ve loved all of Sitchin's books. This is a wonderful update based on new discoveries in science and how they fall right into line with Sitchin's theories on the creation of man and how it all relates to the bible.