source 24

1. http://depts.washington.edu/chinaciv/callig/7calmodn.htm
2. Patricia Buckley Ebrey
3. -.edu website
4. the source says, "Calligraphy has remained a potent force in Chinese life up to the present. During the Song, Yuan, Ming, and Qing dynasties, calligraphy continued to be a central art of the literati, closely associated both with painting and with the social and cultural life of the educated elite. The Chinese landscape came to reflect the appreciation of calligraphy, as stones inscribed with the calligraphy of admired artists were erected at famous sites. Calligraphy could also be seen on temple name plaques, on shop signs, and on couplets pasted by the doors of even very modest homes. Calligraphy, thus, formed an ever-present part of China's visual culture."
5. yes
6. the credentials are okay, and this site has been reviewed by many experts.