The author's books are examples of the power and magic of creative marketing. "Crossing the Chasm" and "Tornado" are a reprise of 60's marketing fundamentals re-labelled with Silicon Valley buzz "stuff." Relatively harmless reading. But only the young and inexperienced will react with bouncy enthusiasm and the sanctimonius exuberance of one who has just seen the ultimate truths revealed. Those who become apostles should be checked at the door for relative intelligence, levels of experience and the age on their driver's license. The "oldsters" will be smiling in the back of the bus and watching the "youngster" marketing "pros" be out-smart-keted by one of their professed own as he deposits the change in his growing bank account as his enlightened followers eagerly line up with money in hand.