Information is Beautiful is one of few books that I can check out over and over again. In fact, I know exactly where it is shelved in the university library (which is almost sad to say). The surprising bit, for me at least, is that the book is made entirely of infographics. There is no dialogue, monologue or "logue" of any sort. Instead, the book is a pure description of random information collected from various source.
Interesting tidbit: The human eyes process about tens times as much data as the tactile senses.