This new series of instructional books on tea ceremony has been published to reaffirm the Urasenke tea ceremony system. It is a 25-volume series, each categorized according to the stages of tea ceremony in Urasenke tea ceremony. With newly taken photographs of all the tea ceremony steps and an easy-to-read, full-color layout, the books provide a detailed and meticulous introduction to the basics. Volume 20 covers the Unohana tea ceremony, Wakei tea ceremony, and Shikishi tea ceremony, all of which are tea ceremony methods using a tea box.