This book offers an excellent practical guide in how to carry out effective behavioural experiments ... I am glad that I will have [it] on my bookshelf and I foresee using it with profit for the rest of my professional career. If you have only a limited budget for professional books, I would certainly recommend this one as a useful one to own. Clinical Psychology ... an enjoyable and stimulating read with lots of useful insights. The Psychologist This book is easy to read with clearly structured chapters set out in a consistent format that will appeal to new and experienced therapists alike, and will be invaluable in both the practice of CT and the delivery of training in it. BABCP Magazine