During the course of my career in teaching and learning I have produced a great many visual resources for use by schools and to illustrate lectures.

This section of the website is constantly being updated. Please check back for more illustrations, or send a message if there is something specific you wish to enquire about.

These images may be made into worksheets, OHPs or incorporated in computer presentations for use in schools and other educational institutions, providing that:

  • - they are not sold or distributed to any third party or used in any profit-making context;
  • - they are credited and clearly marked as copyright Bill Leedham;
  • - they include the url of this website ''.

For terms and conditions for use in any other context you must seek permission from the copyright holder using the contact page.