Calligraphy is a visual art related to writing. It is the design and execution of lettering with a broad tip instrument, brush, among other writing instruments. A contemporary calligraphic practice can be defined as, "the art of giving form to signs in an expressive, harmonious, and skillful manner". Modern calligraphy ranges from functional inscriptions and designs to fine-art pieces where the letters may or may not be readable. Classical calligraphy differs from typography and non-classical hand-lettering, though a calligrapher may practice both.