These devices take the form of a large plastic or glass magnifying screen that is fixed above the writing surface. Where electoral information is made available to voters on screen, the software can be programmed to magnify or zoom in on text and images to make them easier to read by vision impaired people. Similarly, printed material can be printed using large point sizes for vision impaired people. As a general rule, whenever printed material is made available by an EMB in hardcopy or electronic form, regard should be had for people who have difficulty reading small print, and standard point sizes should be adopted that maximise the number of people able to read them. Care should also be taken when choosing fonts for printing or displaying text.
Some fonts are much easier to read than others.
Considerable research has been conducted on font readability, and EMBs are advised to consult experts in this field when choosing fonts for publications.