 Lettering has been particularly important in Islamic art, due to the Islamic practice of avoiding depictions of sentient beings generally and of Muhammad in particular, and instead using representations in the form of Islamic calligraphy, including hilyes, or artforms based on written descriptions of Muhammed.More recently, there has been an influx of aspiring artists attempting hand-lettering with brush pens and digital mediums.Some popular styles are sans serif, serif, cursive/script, vintage, gothic/blackletter calligraphy, graffiti, and creative lettering.