An adult coloring book built around geometric mandala patterns. It was supervised by Kenji Yanagi and edited by Asahi Shimbun Publications as part of the Weekly Asahi Mook series.
The book is a modified A4 size with 112 pages and holds 52 coloring designs. Along with geometric mandalas, some designs turn animals and flowers into mandala-style patterns.
The back of each design has a space to write the date and your thoughts after coloring. There are no color rules, so any colors can be used.