This marvelous little academic book describes the results of studies the authors did that determined -- wait for it -- that people treat computers, TV and other electronic media as if they were human. In other words, we're polite to computers when we address them directly, and less polite when we're talking about them behind their backs. The whole idea seems obvious when you think about it for more than 5 minutes, but I'm sure it didn't when the authors set out to study the matter, and anyway the studies tell you how and why. And it is interesting. But I think the material could have filled one very respectable article in, say, Psychology Today. Nonetheless, this is a seminal work in our understanding of how we related to machines, and illuminates (without directly addressing it) a larger issue of how our brains work: we attach emotions to memories (images) in our brains in order to remember things. The stronger the emotions, the stronger the memory. So it's not really that we're personalizing TVs; rather, we emotionalize everything. This insights comes thanks to recent brain research -- after this book was written -- so the authors can't be blamed for only getting a piece of the picture. The larger point (that we emotionalize everything) has a thousand implications for all sorts of fields and common-sense misconceptions, such as testimony in law, education, politics, and so on, but most of the implications are so surprising that experts in those fields have so far resisted bringing them into their thinking.