This book gathers peer-reviewed papers presented at the 22nd International Conference on Geometry and Graphics (ICCG 2026), held in Zagreb, Croatia, on August 3–7, 2026. The conference is promoted by the International Society for Geometry and Graphics (ISGG) and serves as an international forum for the presentation and discussion of research in geometry and graphics and related disciplines.

The proceedings of ICGG 2026 are published in three volumes covering the conference topics: Theoretical Graphics and Geometry, Applied Geometry and Graphics, Engineering Computer Graphics, Graphics Education, and Geometry and Graphics in History.

Volume 3 contains contributions in Graphics Education and includes poster presentations. The papers included in this book focus on education in geometry and graphics, teaching methodologies, pedagogical approaches, and the communication of geometric knowledge. In addition, poster contributions present ongoing research and emerging ideas in all areas of the conference. This book is intended for educators, researchers, and practitioners interested in geometry and graphics education and dissemination.