The characters in story are well-developed. As they become personal friends through the pages of this book, you find yourself moved by their adventures and misadventures.
The book also discusses celadon pottery, and the painstaking work it took to create a masterpiece. Reading a story like this is a great way to give kids an understanding of the art of pottery making.
This book is aimed at children ages 8-12, and that seems like a good range to me. However, if you read it aloud to your children or siblings, you as an adult will also be impacted by the story!