In this manual the authors present an effective and low-cost method of behaviour therapy for the group training of schizophrenic patients, which in many applications in the US and Europe has greatly improved their cognitive and social skills. This therapy programme has been designed for in-patient and out-patient application in the rehabilitation context. A wide spectrum of current experiences and empirical evaluation studies of the program are discussed in detail. The approach to the therapy is divided into sub-programmes: cognitive differentiation; social perception; verbal communication; social skills; and interpersonal problem solving. The book employs many relevant examples to illustrate its highly practical orientation, and to help clinicians most efficiently and cost-effectivley adopt this approach. As a result, the manual constitutes a fundamental tool for the practitioner's own day-to-day work. The computer disk included enables the user to reproduce the forms which are useful in implementing the techniques explained in the book.