Clay, glaze and brushwork combine to produce an interesting interplay betweem the basic form and surface decoration of a pot. I use wax resist, glaze and underglazes to brush on the designs in my work. See page 3 of this site for a glimpse of my brushes. It takes years to feel comfortable with some of the brushes. Deer tail and Elk tail hair brushes are challenging but freeing, giving a spontenaity to the strokes.