Most of this book is a primer for non-clinicians on what is meant by 'human emotions', and how a computer in physical contact with someone could identify that person's mood and respond appropriately to it. Picard makes her case that 'emotional intelligence' would be a useful attribute for software. A human who loses the ability to feel emotions becomes, not admirably logical like Mr. Spock, but unable to make quick, simple, arbitrary decisions and prone to repeat mistakes. Just like most software today. Picard relates the use of affective computing primarily to the 'wearable computers' that researchers at MIT have been playing with for over 10 years to do mostly trivial functions like take photographs and generate muzak. There wasn't much here for those of us who have to interact through keyboards/mice and monitors, and surprisingly no attempt to connect affective computing with related techniques such as fuzzy logic. There is an excellent source reference list at the back.