Having long been interested in both the scientific search for Extraterrestrial Intelligence and the (sometimes fringe) topic of UFOs I was pleasantly surprised to find that this book adopted a fair and balanced approach to a subject which can all too often be treated with both unthinking scepticism by debunkers or total, uncritical acceptance by far out mystics.
To find a book such as this one that takes an open-minded but objective look at the facts and then seeks to make reasonable assumptions about the likelihood of Alien visitation is refreshing to say the least.
Throughout J. Allan Danelek gives an excellent overview of the history, current thinking on the nature of, and theories surrounding, the UFO phenomena. Treating the subject (and related modern anomalous reports such as Crop Circles, MIB's & purported alien abduction) with enough open-mindedness to accept that there are real events to be explained he nevertheless does so without losing his objectivity or a reasonable level of critical analysis of the subject matter - he neither accepts facts or fantastical explanations blindly nor attempts to belittle UFO sightings as `all in the mind' or the product of deliberate hoaxing.
This is a sensible, unsensationalist book for those people interested in an intriguing subject - ideal for both someone looking for a first introduction to the mystery of Unidentified Flying Objects or people already familiar with the subject. J. Allan Danelek's conclusions about the phenomena are both exciting and objective (a rare combination given the two extremes of opinion that are normally generated by any UFO debate).
Whatever the ultimate scientific truth is regarding intelligent alien life the discussion is greatly enhanced by quality books such as this.