By reading the above reviews, thought this book would be great...and the content is truly valuable, but the embedded listed charts will not zoom up so you can read them. Very disappointing, because a synonym reference book with Kindle features that work would be solid gold!...I called Customer Service and talked to a very nice woman who said she would forward this glitch to publisher. Fortunately, my purchase price of $35.50 will be refunded. Can't see how an obvious error like this could be sold on Kindle web site. Who checks this before before placing on Kindle Store?