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Hardware design On-screen design Next Bibliography Index Guideline 22 Guideline 21 Guideline 20 Guideline 19 Guideline 18 Guideline 17 Guideline 16 Guideline 15 Guideline 14 Guideline 13 Guideline 12 Guideline 11 Guideline 10 Guideline 9 Guideline 8 Guideline 7 Guideline 6 Guideline 5 Guideline 4 Guideline 3 Guideline 2 Guideline 1 Introduction Table of contents Previous On-screen design Hardware design Next page Bibliography Index Guideline 20 Guideline 19 Guideline 18 Guideline 17 Guideline 16 Guideline 15 Guideline 14 Guideline 13 Guideline 12 Guideline 11 Guideline 10 Guideline 9 Guideline 8 Guideline 7 Guideline 6 Guideline 5 Guideline 4 Guideline 3 Guideline 2 Guideline 1 Introduction Table of contents Previous page

"The text was too small"

Participant in EBONI psychology evaluation

Fonts should be large enough to read comfortably for long periods of time. If possible, readers would like to choose a font style and size to suit their individual preferences, thereby satisfying the needs of those with perfect vision and those with low vision or reading difficulties. Nielsen recommends sans-serif typefaces such as Verdana for small text of 9 points or less since the low resolution of many monitors means that the detail of a serif font cannot be rendered fully. Choose a colour that contrasts sufficiently with the background.


11.1 Use a font size large enough to read easily for a long time
11.2 Use sans-serif typefaces for small text
11.3 If possible, enable readers to manipulate font style and size (see Guideline 17)
11.4 Use a colour that stands out from the background
11.5 Avoid italics

Figure 10

Figure 11. Readable font: Neuroscience for Kids by Eric Chudler

This section of Neuroscience for Kids uses a 12 point serif font, with line lengths of 10 to 15 words.

Click to enlarge


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Screenshot used with author's permission