With lavish mixed-media art including watercolor painting and hand-dyed textiles, debut author-illustrator Rosa Chang pays tribute to the science and art of growing the indigo plant and making indigo dye. Woven throughout is a poetic tribute to the color blue, Chang's favorite since her girlhood in Korea, and an appreciation of the indigo plant as a valued source of blue dye in cultures around the world. Informative back matter tells more about the science behind indigo dye production, with an "indigo map" of the shades of blue produced by indigo around the world, and simple instructions for growing your own indigo plants and making homemade blue dye.