As the highest form of art, calligraphy started both as an exploration and an expression of the written word of the Koran. Calligraphers were given precise rules in terms of symmetry, proportion and thickness of letters to produce energetic and exuberant styles of writing. The aim was to produce symbols which have visual impact, but at the same time specify unity and order. Eventually, with the spread of Islam and its integration with other cultures, calligraphy developed into a divine art with a high degree of sophistication. It became an integral part in the decoration of great mosques, and in spaces of spiritual significance. Everywhere you turn, the word of God and his divine messages are on view on the walls. However, these abstract designs were not just used to adorn the interiors of architectural masterpieces. In fact, their perfection was hijacked by artisans working across the entire decorative industry. Soon, they became engraved on a vast array of objects. And beside calligraphy, the exquisite geometric patterns of arabesque continued their transcendence into mosaics, and the complex forms of plaster and woodwork used in residential design. The rich palette used is a poetic blend between man and his natural habitat. It borrows its hues from the earth and desert, fusing muted reds, honeyed yellows, bold greens and blues, with a wide accent of colours ranging from the soft shades of brown, to the lush colours of burgundies.