Jehovah's Witnesses has a sometimes strange way of interpreting the Bible, and it may be hard at times to understand why they believe what they believe. Robert Bowman provides a guide to the theology of the Witnesses. He also cites some of the reasons they give for their distinct beliefs, and then he refutes the arguments and gives reasons for interpreting the Bible in an evangelical way.
Bowman discusses the Witnesses views on (I) authority, (II) the Trinity and Christ, (III), death and hell, (IV) resurrection, (V) salvation, and (VI) Christ's return. In all these areas Bowman shows how the Witnesses misinterpret the Scriptures and gives verses that contradict Jehovah's Witnesses views.
One of the best things with this book is that Bowman, unlike some other authors who write about Jehovah's Witnesses, always is matter-of-factly with a respectful tone. Bowman seems to have heeded his own advice on how to witness to a Jehovah's Witness. Know your Bible, be courteous and respectful, and remember that the person you're dealing with is - although he is indoctrinated - still a person. Might seem obvious, but we often fail in some regard.
My main problem with the book is that it is very concise. It's not a book to read cover to cover, although it's quite short. After a section on, say the Trinity and Christ, I would like to reflect and think about what my beliefs really mean. In a short book like this, one seldom gets that sort of discussion but is instead thrown into the next topic. I also miss some bible verses that more clearly would show what the Bible teaches at times (e.g. John 10:17 would counter the argument that Jesus could not rise bodily since that would mean taking back the ransom he paid). These are minor concerns, however, and mostly due to the shortness of the book.
[One word of warning: there seem to be some minor geographical differences in the teaching of the Witnesses (e.g. what I've heard about the teaching on the "soul" here in Sweden is not what Bowman writes), so be sure to let the Witnesses interpret their own faith.]
All in all, Bowman does a great job in introducing the theology of the Witnesses, and showing how one can interact with them. I highly recommend it to anyone who wants to engage in fruitful conversation with a Jehovah's Witness about the Christian faith.