I must recommend this book. Do not let the 'controversy' of said agriglyphs influence your judgement. The proponent explanation is one of extra terrestrial intelligence whereas the skeptic ascribes the phenomona to human hoaxers, but to sit and debate with oneself or others clearly misses the point. These stigmas are unfortunate. Indeed, this book is unequivocally the most interesting and awing I've owned. It is not merely about "crop circles" and their stigmas. It is in its essence a spiritual book because the majority of it deals with the meanings, both factual and speculatory, of these phenomenons (I interpret said meanings as spiritual although you may not). Not stuffy, boring maxim type of spirituality but such that it is revealed through advanced (sacred) geometry, allusions to Human DNA, and references to our own primeval cultures. Any inclination to believe 'where they come from,' in whichever form, is not needed to be awe-struck and moved by this book... in fact, such a preoccupation is completely missing the point. Freddy Silva is not a charlatan nor does he present his material in such a way. The supposed complexity of any material is no excuse for a simple mind to deride it or its expositor. Ignorance never appologises for the lack of effort involved (wink, wink).