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"Deb Barrett asked about the clay I used for the demonstrations in the book. It comes from Clay Art Center in Tacoma, WA. Here's the description:
CL043 SMY - MID-RANGE STONEWARE CONE 4-6:
Yellow iron gives this general purpose clay body a ...golden appearance when wet. It fires a warm light brown in oxidation and dark brown in reduction. Fine textured with 70 mesh sand. Cone 4-6. Wet Color golden, Oxidation Color light brown, Reduction Color dark brown, Texture medium smooth, Shrinkage 13.0%, Absorption 0.5%."