`this is an important book that should richly reward the persistent reader' B.D. Ripley, University of Oxford, JRSS, Sories A, Vol. 158, Part 3, 1995 `an imprssive new synthesis ... It clearly represents the bible of pattern theory, and from that perspective one cannot but recommend it.' D.J. Hand, The Open University, International Statistical Institute, Vol. 14, No. 3 - December 1994