What's new in this book about a movement, that has had every be-in, love-in, smoke-in gleefully attended by the press? Well, not everybody might know that there are all kinds of hippies ""doing their thing"" (cardinal rule #1), from the halls of Haight-Asbury to the tribal centers of the East Village to Boston, Atlanta, Detroit, Toronto, London, Paris, Amsterdam, Munich, New Delhi, etc. Generally white, middle-class educated youths ranging in age from 17 to 25, the hippies apparently go through a metamorphosis after their initial drop-out from society. The Time correspondents record it as stages of search for self-awareness and the magic keys to the research are drugs. The ultimate aim, according to one relative, oldster, is ""peace of mind with a worthwhile goal,"" sans drugs which, at least, the West Coast's more stable communes have abandoned. If you wonder about this for the ""white middle-class educated youths"" who form the bulk of your readership, it's worth remembering that many of them are rebelling against bland overprotection.