Mr Waugh has done his research well, and offers a fascinating little study of revival history throughout the centuries and across continents. Unlike many such studies though, this author concentrates not on those great 18th and 19th Century awakenings, but on revivals of the 20th Century. Some of these are not well known at all, so his information is most appreciated, eg Solomon Island in the 1970's, amongst Australian Aboriginees in the 1980's, etc. He does spend an awful lot of time focusing on 'renewal' in the 1990's (eg Toronto), which many, including myself, would not include in the category of true historical revival. Apart from this, this is a most worthwhile read indeed.