Kelk is a program for creating Arabic calligraphy. It contains fonts in various styles such as Al moalla, Al Tuluth, Al Nastaliq, Al Kuffi, Al Naskh, and Al Diwani Al Kuffi. The document provides samples of text written in each font style and instructions for using the Kelk program fonts, saving designs, and comparing handwritten calligraphy to the digital fonts. The purpose of the document is to introduce Kelk as a tool for Arabic calligraphy.