Stephen Few's book is like a practical guide to Edward Tufte with particular respect paid to computer systems. His examples elucidate problems and techniques clearly. One problem with the examples is that he doesn't correct them, like Jakob Nielsen does in Prioritizing Web Usability. The examples (e.g. on p115) are negative only. How would Few make them better? Few is a bit long-winded in parts, but in general, he writes well and concisely and the book is a very easy, pleasant read.