My copy was not new and came with a lot of underlining, which was a great help as there is really a wealth of information in this book. While The calcium Factor was published in 2002, much of what these authors write and warn about has continued to be investigated in research and still holds to be accurate. I was happy to read someone say it is good to drink milk, although many doctors today would disagree. Primarily, I was interested in the information on coral calcium as the best form of calcium as a supplement (the most usable by the body) and all its advantages. You will learn a lot about calcium if you read this book, how we store it in the body, use it, how much we really need, its benefits, calcium deficiencies and its relationship to diseases like cancer, necessary supplements to go along with calcium to make it more efficient, etc. If you are interested in researching the nutrition of calcium, you will enjoy this book as I certainly did.