Overhead projector

Versatile display system that projects images from transparent sheets onto a large screen behind the presenter. Can be used with screens prepared in advance, with sheets that progressively overlay the original image and can be made up, altered and added to during the presentation itself.[Advantages]

The presenter remains facing the group while drawing on the sheets. The sheets can be specially printed and copied and transported with comparative ease.

[Disadvantages]

Can be a distracting element.