Which font characteristics are recommended for optimal readability?

For optimal readability, it is recommended to use sans-serif and plain fonts. Sans-serif fonts, which lack the small projecting features called "serifs" at the end of strokes, are generally easier to read on screens and for individuals with visual impairments. The clean and straightforward lines of sans-serif fonts contribute to a more legible text, especially at smaller sizes. Additionally, plain fonts help maintain clarity and reduce distractions caused by elaborate designs or decorative elements.

Using decorative fonts, script typefaces, or italicized styles can compromise readability because they introduce complexity and variability in letter shapes, which may confuse the reader. Decorative fonts can be visually appealing but are often harder to read, especially in body text or longer passages. Therefore, the combination of sans-serif and plain fonts is favored to enhance accessibility and ensure that all readers, regardless of their literacy level or visual abilities, can easily engage with the written content.