Coiling

A method of forming pottery or sculpture from rolls of clay, it is done in a continuous spiral that is smoothed together to form the sides of a jar or pot. Coiling requires the use of much water and slow drying to prevent cracking, and with small pieces, the potter remains seated and rotates the clay, always keeping the palm of the hand to the outside. Source: http://www.uiowa.edu/~intl/rft/slide_show/slide2.html