This isn't a great work of literature. It's not particularly thought-provoking and you certainly won't learn anything by reading it, nor will you gain any great insights into the human (or, indeed, canine) condition. What you will get, on the contrary, is a charming little book, ostensibly from a dog's perspective, of observations about the Christmas season.
The book is delightfully illustrated alternately by photos of its "author" (Trixie the dog) and cartoons depicting canine festivities. Perhaps even more impressively, the "editor," Dean Koontz, displays what seems to be a remarkable understanding of the canine mind. Any dog owner is sure to find the various thoughts and anecdotes strikingly familiar.
Admittedly, this isn't the kind of book I ordinarily enjoy, but I recommend it nonetheless. It's always fun to take it off my shelf for a quick re-read during the holiday season.