Written in a somewhat matter-of-fact manner, but sticks entirely to what is historically recorded and thankfully totally avoids any completely speculative "Celtic", New Age-ist or pseudo-pagan kind of associations. (I suspect that the sun rising over Stonehenge on the cover is a daft product of the publishing house's art department and not something Hutton himself would have chosen.)
Thoroughly researched, this is a must read for anyone interested in British history, and very revealing in what large numbers of annual festivals and rituals we have lost forever. In particular, see here just how deeply the Reformation changed British society - it went far, far beyond the dissolution of the monasteries you learn about in school. In many cases we should be truly thankful to have lost them. For example you might think that the once a year kid's Trick or Treat is a pain, but just read here what a huge number of ritualised begging days, with potential consequent nastiness if you didn't cough up, which our ancestors had to put up with. Also, the animal cruelty beggars belief - killing wrens to display on a stick at Christmas, tying up birds to kill by throwing clubs at them and tossing cats in the air at Shrovetide, and so on.