Embroidery is a traditional Chinese craft which consists of pulling colored threads through a background material with embroidery needles to stitch colored patterns that have been previously designed on the ground. The adoption of different needling methods resulted in different embroidery styles and technique schools. Chinese embroidery had already reached a high level early in the Qin and Han dynasties, and silk and embroidery were the main products transported along the ancient Chinese Silk Road. The four famous Chinese embroidery styles are the Su embroidery of Jiangsu Province, the Xiang embroidery of Hunan Province, the Yue embroidery of Guangdong Province and the Shu embroidery of Sichuan Province.