This is an excellent book for the beginning oenophile. Truly, I have found that there was no greater revelation in my gustatory experience than when I first had a good glass of wine. Not a wine that had been left out and corked at a restaurant for three days, not a $4.99 bottle from the local supermarket, not two-buck-Chuck, or, god forbid, the jug wines of my parents day. That first good glass of wine opened my eyes to an amazing world that I didn't know existed.
When you have that first good glass, you seek out more, and during your search you discover that there are varietals you've never heard of: Viognier, Barolo, Carignan, Mourvedre, Tempranillo, and so many others. As you taste these wines, you realize this is a world you want to know more about.
This is the perfect book to start your journey into the "wonderful world of wine". While it is very well written, it is certainly not comprehensive (no introductory book of any kind could be!) but there are times when the author references something that 1) you may wish to know more about; or 2) you feel it hasn't been adequately explained. I would highly recommend purchasing The New Wine Lovers Companion, available here on Amazon for only $10.17 (i.e., not any great expenditure) and keep it next to you while you go through the book. It will greatly enhance your experience.
When you have finished with this book you will have a solid understanding of all of the major wine producing regions in the world, the varietals that come from them, the wines that are made, and so much more.
I myself work part-time in a wine store, and recommend this book to everyone who comes in wanting to know more.