A drawing of a calendar with 10 days crossed off reinforces the point that the reader has 10 days to act. Use type that is large enough for easy reading Adequate type size is very important, especially to older readers and to readers who cannot afford eyeglasses. Try to use 12-point type or larger. You can also improve readability by increasing the space that separates each line of type from the lines above and below. Improve readability with formatting Keith Miller, in his seminar Designing for Desktop Publishing shared the following results of readability studies.
Text set in multiple columns is generally much easier to read than single-column text.
I've set one page of this letter in a single column to illustrate the difference. The word spacing is more even and the page shows more white space. Field test Before printing information on a complex subject, ask a member of the target audience to read your draft. Ask this person several general and specific questions about the appearance, type size, and content. Many times, we writers are too close to the forest to see the trees.