ABSTRACT
Pictorial material covers paintings of all types, style and age; drawings and illustrations of all types, style and age; photographs; maps; decorations; film; video; computer generated images; and any material in which pictures or pictographs are used. The purpose of this chapter is to give an introduction to ways of dealing with this material in a general sense. Visual acuity and aesthetic sense develop as the pupil grows to maturity. The ability to read depth cues and to discriminate between an image and the real thing are learnt at a very early age but this ability develops to lesser or greater degree over time. The ability to make judgements about expression, style, composition, aesthetics and so on is only present at an early age under specially manipulated circumstances. Portraits are a long established form of pictorial representation. The problem with most portraits is that they are produced at the behest of the sitter in order to present a public image.
