The first book I will list is REQUIRED READING! This book is called The Newfoundland puppy: Early care, early training, by Judi Adler. As far as I know, it is only available directly from Judi at Sweetbay.com. If you only buy one book when getting a Newf puppy, make sure it is this one! It is paperback and in black and white, but is by far the most informative Newfoundland Dog Puppy book I have ever seen.
The Newfoundland Gentle Giant by Jo Ann Riley is another good book, also a paperback, it has lots of good photos and gives good information on everythings from the history of the Newfoundland to the raising, grooming, dealing with your elderly Newf and also information on The Newfoundland Club of America.
Newfoundland Today (Book of the Breed S)
Like I said in the beginning, these are all good books and there are a few more out there I am sure. These are just a few of my favorites.