Readability and legibility. A determining factor in the choice of a font is its “readability”. Many fonts are intended to give a sense of novelty or imagination, qualities that are irrelevant and even undesirable for contracts, prospectuses or legal advice. Readability is influenced by different factors, some of which are more important than others. A factor that improves readability are the serifs that harmoniously connect the letters. However, on computer screens, places without serifen seem more readable. In addition, over time, sans serif character designs have been improved to reduce the impression that the stems of two neighboring letters merge.