Traditional Chinese Puzzles II is the first book on smart devices in ancient China. With beautiful pictures and rich historical materials, the book introduces chain rings and bracelets, puzzle locks, bottom-filling pots, Cup of Justice, quhu pot, puzzle boxes, floating cups and other smart devices of China. Through the beautiful pictures and exciting twists and turns in researchers’ quest for artifacts, the book offers a wonderful glimpse into the details of daily life of Chinese people in the Ming and Qing dynasties.