Zecharia Sitchin is the founder of Anunnaki research. For decades, he meticulously demonstrated that the Sumerian and Akkadian clay tablets from present-day Iraq tell a coherent story of extraterrestrials who "came from the sky to Earth" and created modern humans. Sitchin's long-time colleague and friend, M. J. Evans, thoroughly analyzes these revelations, based on numerous conversations she had personally with Sitchin over nearly twenty years. She examines his research on the arrival of the Anunnaki on Earth, their space travel technology, the lineage of the giant Nephilim, and the creation of modern humans, revealing details of the love and lust inclinations of the Nephilim gods Anu, Enlil, and Enki, as well as the goddess Inanna/Ishtar, and shows how we have inherited these inclinations from our Anunnaki creators, along with their use of war as a means of problem-solving.

John L. Petersen, head of the Arlington Institute think tank, states: "No other modern thinker has provided a more compelling, coherent, and influential explanation for the origins of humanity than Sitchin. Millions of people view the meaning of human experience through the lens of his discoveries and insights. Thankfully, his long-time colleague has done us the favor of summarizing his work in an extremely readable compendium."

M. J. Evans is a professor emerita at SUNY Empire State College, where she taught environmental geography for thirty years. As an expert in Sitchin research, she became known through the TV series Ancient Aliens. After several trips to the Mediterranean, Europe, and Mexico, where she accompanied Sitchin, she now spends most of the year in Turkey, studying ancient sites and landscapes.