The book is a self-help manual that sheds a lot of light on the psychological aspect of shyness.
The book talks about it being a form of anxiety disorder, a feeling of distress that an individual experiences while being around a large crowd. It also covers the acute aspects, the cases where social anxiety and associated phobia can be crippling for an individual and the consequences are really bad too ranging from inability to perform to alcoholism, drug abuse and even suicide.
The author has very well analyzed the underlying causes, the mental patterns and thoughts that an individual goes through when he is socially anxious and shy and has aptly come up with exercises and experiments that will ultimately help an individual in getting rid of them in totality thereby becoming a confident individual.