Däniken's first book, Chariots of the Gods, was an immediate best seller in the United States and Europe, and subsequent books have been translated into 32 languages and together have sold more than 63 million copies." The ideas put forth in these books are largely rejected by scientists and academics.
The idea that early alien beings either presented themselves as Gods or were thought of as Gods is a belief that has been gaining in popularity over the last few years.