Designing for all doesn´t refer exclusively to the physical environment, but also to the sensorial and cognitive one. An important aspect of our daily lives is information, and the way and means we have to perceive it. Depending on the abilities of each person, there are different formats that will be more understandable or perceptible for each one, that´s why all relevant information has to be presented in alternative formats. Apart from the visual and audio formats, the written information has also to be as much accessible as possible for the most people.
To this purpose, the Centre for Excellence in Universal Design from the National Disability Authority of Ireland has published some clues to design documents accessible to everyone.
Some of these guidelines are:
The size of the text´s font has to be at least 12 point.
The used font has to be clear and easy to read.
Where possible, adaptations of the text may be provided, like larger printing, Braille version, and using “Easy to read” writing. As well, it has to be guaranteed that it can be read with screen reader software.
To emphasize information, use bold instead of other effects.
Structure the contents in a visually way, using different font´s sizes.
Leave spaces between paragraphs and columns.
Contrast between text and background is very important.
Images should not interrupt the reading.
Get a more complete and detailed information, visit the Centre for Excellence in Universal Design website.