Intellectual property has been designed for the purposes of research, teaching, private study and general interest. Where copyright exists in any of the pictures used, they may not be further reproduced for any other purpose. If you are the copyright holder in any of the content included in these images and wish to query the inclusion of any material here, please contact Sue Walker ( and we will be please to discuss your query. The copyright of the structure and contents belongs to Professor Sue Walker, Department of Typography & Graphic Communication, University of Reading. She would be pleased to receive any comments about any aspect of this resource.