This is one of the most ridiculously stupid books I have ever had the pleasure of reading, riddled with the most comically inaccurate sweeping generalisations, and just plain mad stuff. For example at one point the author says that "the ancients" built their tombs in a "pi" shape for very secret mathematical reasons. Standing two stones up vertically and then laying another one horizontally across the top of the other two seems to me like a pretty basic way to create a cave-like structure in which bones etc might be deposited; rather than a cunning mathematical formula. But that's the kind of bollocks the author presents as though it were fact.