Early on I expected to give this 3 stars but it seemed unfair to not give it 4. Wainer writes well, is witty, is unafraid to throw in some formulas and seems to go just the right distance in both breadth and depth to create a popular book about statistical displays. It covers theory, history and plenty of applications of the tools found in the Science of Uncertainty. I think for most people that want to brush up a bit on statistics, this would be an excellent book with which to start. The focus is on exploration of data via graphics (charts, etc) and examines the benefits and pitfalls of the visualization approaches.
I think the most amazing thing I'll remember from this book though is that the Charles Minard's chart of Napolean's winter attack on Russia (made famous in tech circles by Tufte) was created when the man was near the end of his life, at age 88. He had been doing similar charts for decades, but he put everything he learned into that one and created what is widely known as The Greatest Chart of All Time, his masterpiece, at the end of his career.