Who is the murderer? What does he look like? A witness saw him. The killers face is burned into his memory. A composite sketch is created. The murderer is caught. Before he could kill again. For composite artists: What does a composite artist need to know? From different techniques to the latest psychological research. From the principles of proportions to the principles of ageing. This book will make you into the perfect composite artist. For witnesses: How is a face remembered? How can this skill be improved? This book teaches you how to become the most important person in the hunt for the killer.