In some ways this short, highly readable book would be a good companion to Goleman's "Emotional Intelligence". Like that book, it provides a guide to current scientific thinking about emotion (including many studies not mentioned by Goleman). It also covers philosophical theories of emotion, mood- altering techniques (such as the use of colour to evoke particular emotions), and how robots are beginning to recognise, elicit, and possibly in the future even feel emotions.
One of the central ideas of the book is that emotions provide a 'quick and dirty' way of assessing situations and making decisions which is often more efficient than using reason and logic alone. One of the chapters is called "Why Spock Could Never Have Evolved".
Evans, a philosopher and part time DJ, comes up with a huge quantity of interesting information and ideas in 200 pages. As a scientist with no psychometric test or consultancy to sell, he provides a refreshing alternative to the tendency in many business-oriented books to 'stretch' the concept of emotional intelligence to encompass every presumed quality of a 'good employee' until the term 'EI' loses all meaning.