68 pages, large size. Revised 2023 Edition, Japanese/English edition. It can be considered a guidebook to Takehisa Kosugi's activities. Centered on the 2023 Memorial Exhibition of Takehisa Kosugi held from November 10 to commemorate the publication of a revised edition of the catalogue of the "Takehisa Kosugi The Sound World New Summer" exhibition held at the Ashiya City Museum of Art and History from May 18 to July 7, 1996.
The A6 variant has been changed to a B5 edition, and new English translations, illustrations, and annotations have been added.