: Includes diagrams for the "Hina Doll 2019" by Kamei Kohe , a detailed representative of traditional Japanese culture.

As the first issue of 2025, it continues the JOAS tradition of blending mathematical precision with artistic expression, serving as a vital resource for intermediate and expert-level folders.

: Features the "Octahedron Magma" and "Deep Sea Cube" by Toshikazu Kawasaki , known for his revolutionary rose and geometric designs.