Editor’s Note: this is an abbreviated version of a foreword to Charms of Ceramic Glaze, a book by Guo Yi. Zhang Huasheng is a celebrated painter and director of Zhejiang Arts Academy. The earliest human invention is probably pottery. The only color that lasts is probably pottery tints and porcelain glaze, even if the very ancient pottery and porcelain utensils made by our earliest ancestors have long since been broken to shards. Editor’s Note: this is an abbreviated version of a foreword to Charms of Ceramic Glaze, a book by Guo Yi. Zhang Huasheng is a celebrated painter and director of Zhejiang Arts Academy. The earliest human invention is probably pottery. The only color that lasts is probably pottery tints and porcelain glaze, even if the very ancient pottery and porcelain utensils made by our earliest ancestors have long since been broken to shards.