This introduction to the principles and methodology of modern multivariate statistical analysis has been written for the user and potential user of multivariate techniques as well as for postgraduate students coming to the subject for the first time. The approach is problem-orientated and stresses geometrical intuition in preference to algebraic manipulation. Mathematical sections which are not essential for a practical understanding of the techniques are clearly indicated so that they may be skipped by the non-specialist. Recent developments concerning discrete and mixed variable techniques are presented as well as continuous variable techniques, and other modern ideas are covered. Thus, this volume provides an up-to-date account of the subject for research workers in subjects as diverse as anthropology, education, industry, medicine, and taxonomy.