In Islamic countries the graphic designs can be found in their holy book, the Quran. The Quran was first wriiten an angled style called Kufi. This appeared in the 8th century, and reached its peak in the 10th century. Later on decoration of margin, page and other graphic techniques were added to beautify the book. In the 12th century the Naskh script was invented: it used curves instead of angled lines. Other styles were added later on.