Final answer:
Katherine Paterson is the author of the historical novel *The Sign of the Chrysanthemum*, which is set in medieval Japan and explores themes of identity and samurai culture.
Step-by-step explanation:
The book The Sign of the Chrysanthemum was written by Katherine Paterson. This historical novel, set in medieval Japan, tells the story of a young boy's search for his father and his own identity amidst the backdrop of the samurai culture.
Katherine Paterson is known for her skillful storytelling and has received numerous awards for her contributions to children's literature, including the Newbery Medal.