Make the font and layout of your text as readable as possible.

What can I do?

  • Use sans serif fonts, such as Arial and Comic Sans, as letters can appear less crowded. Alternatives include Verdana, Tahoma, Century Gothic, Trebuchet, Calibri and Open Sans.
  • Font size should be 12-14 point or equivalent (e.g. 1-1.2em / 16-19 px).
  • Larger inter-letter / character spacing (sometimes called tracking) improves readability. Aim for around 35% of the average letter width.
  • Larger line spacing improves readability 1.5 / 150% is preferable.
  • Avoid underlining and italics as this can make the text appear to run together and cause crowding.
  • Use bold for emphasis.
  • Avoid fully justified text which lines up with both left and right margins, as this causes poor spacing between words and characters.
  • Avoid centrally aligned text.
  • Always left justify text.
  • Avoid multiple columns.


  • All these recommendations make your text clearer and easier to read for all of your learners.
  • People with cognitive impairments will particularly benefit from a clear font and layout.

Further information

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