I really liked this book and feel it is a must read for anyone of the Christian faith. It has an extensive bibliography for further study and several appendixes and footnotes section. Kingdoms At War is a wonderful introduction and food for thought comparing secular humanism with Christianity. Even though written in 1985, it is still very relevant for today as the differing world views are even more evident in daily life and in the media, education, business and politics. Each chapter ends with study questions for the reader-- not so much question/ answer stuff, but more for reflection on what the reader personally thinks. Each chapter also summarizes with a table comparing secular humanism viewpoints with Christianity. This book has definitely sparked my interest in the subject and wish to seek out more of the books mentioned for further reading.