Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Outdated and unclear

I've only read the first six chapters of this book and I am already frustrated with it. It was first published in 1971 and in the chapters I've completed so far, it does not appear that the reference information was updated in the 1983 edition. They still refer to population statistics from the 1966 Australian Census as a viable purview of Maori religious distribution. In addition,I am disappointed as the chapters provide virtually no framework for time periods, religion origins, establishment of the Gods and adaptions through the religion life spans. In addition, they do not coherently link the religious practices with the Gods and their evolution and modification from evolving populations. If you are hoping to get a basic understanding of the religions discussed book without reading other world religion books, you will be disappointed. My advice is not to waste your money.