Introduction

Abstract

The use of graphic texts is a prominent characteristic of modern societies. Simple actions like driving and shopping at the grocery store are guided by signs, directions, maps and advertisements. More complex actions, such as scientific research and financial calculations, are supported by written texts, graphs and mathematical formulæ. A wide variety of representational tools, such as photographs, illustrations, numerals and words, are cleverly combined to create many texts designed to serve those who make use of them.