Anxiety may be debilitating or stimulating; it can result in neurotic symptoms or in improved, heightened performance in an actor or athlete. It is something every human being has experienced. As Professor G. M. Carstairs points out in his Foreword: "During the course of the twentieth century we have found it progressively easier to concede that we are all to often swayed by emotion rather than reasonWe have come to recognize the symptoms of neurotically...