This is one of the best science popularizations I have ever read. Science writers frequently have trouble finding the right voice in addressing the general reader, but in this case I found the tone perfect: lucidly written, logical, cogently argued, complete, with good narrative flow; not patronizing, not trying to grab with cheap journalistic metaphores or other strained writing designed to win over the timid. Anyone who has ever wondered about emotions-- what they are, where they come from, why we have them, what their role is in "thought", will be well rewarded for reading this book. I also found it more up to date and more accessible than the other famous book on this subject, Descartes' Error.