I have to say that I was a bit disappointed with this book. OK, it contains a good account of the various sightings and possible explanations together with photos (very poor quality,but that's about par for the course),and some line drawings of sighted craft, but a large amount of space is taken up with witness statements. Instead of saying something like "23 people saw this object",actual statements have been reproduced for the various witnesses. Whereas this gives an authentic feel for the events described, there are only so many times that you can keep reading the same story over and over before you start to get a little bored, and I'm afraid I completely lost interest around page 51. One for diehard UFO-logists only.