I own a complete set of the original Haunted Skies ~all 11 volumes and I can tell you without any bias that they are the best books looking at UFOs and UFO history I have ever seen. The photographs and research, not to mention the interviews carried out by the authors, make these books a must for anyone seriously interested in the subject. If you can find copies.
I have not seen these volumes, however, I have been privvy to glimpses and I do know that now that Hanson and Holloway are in overall charge these are going to be even better.
As soon as ordering details are available I'll post them