Very, very long time ago I read something from Erich von Däniken - it was still at school, so must be 30 years since...
An alternative approach to a number of phenomen. Good in so far as it opens the mind to alternative interpretations, and questioning traditional ones. Not saying that his are valid though. Some have been disproven, some can't be (yet?).
In times of crisis it is of the utmost importance not to lose your head (Marie Antoinette)