Judge Dee at Work is a collection of gong'an detective short stories written by Robert van Gulik and set in Imperial China (roughly speaking the Tang Dynasty). It is a fiction based on the real character of Judge Dee (Ti Jen-chieh or Di Renjie), a county magistrate and statesman of the Tang court, who lived roughly 630–700. The book features eight illustrations by the author. The book also has a postscript where the author places all the novels and stories into a coherent timeline for his semi-fictional character.