Coming from the age of typewriters, monospaced designs still have a large group of supporters in graphic design not only because of its mundane tone of voice but also because of its commitment to uniformity.
The family comes with many alternative glyphs, changing the appearance of single words or paragraphs dramatically. All alternative characters are available with their diacritic counterparts.
Text vs Display
Rational TW Text works best in small font sizes because it features distinctive letter shapes like a double storey a or g. Rational TW Display creates a geometric uniformity by implementing more round shapes, resulting in a subtle friendly and open character.