Let me start with this quote:

“God is Beautiful and Loves Beauty”

— so said the Prophet of Islam some 1400 years ago. He also said, “God likes that when you do anything, you do it excellently.”

continue quote:

Such prophetic sayings (hadiths) have provided the impetus for Muslims’ embellishment and beautification of their places of worship, homes, and even of articles in common use in everyday life. The emphasis in Islamic art is on ornamentation rather than on art for art’s sake; while the names of the producers of the finest works of Islamic art may not have survived, their works have become prototypes and models on which other artists and craftsmen patterned their works, or from which they derived the impetus for related work.

another quote:

Because of the strict injunctions against such depictions of humans or animals which might result in idol-worship, Islamic art developed a unique character, utilizing a number of primary forms: geometric, arabesque, floral, and calligraphic, which are often interwoven. From early times, Muslim art has reflected this balanced, harmonious world-view.

end-quote, taken from here

Here are some examples of Islamic calligraphy. Most text taken from the holy Quraan.

nun.jpg kaabaarabesque.jpg

kruska.jpg yutil-hikmete.jpg

Beautiful pieces right?