This book compiles the proceedings of the 11th European Conference on Wood Modification, a key event with a 20-year tradition in advancing wood science. The book offers a comprehensive overview of all major wood modification techniques—including thermal, oleo-thermal, thermo-hydro-mechanical, chemical, and impregnation methods—while also highlighting cutting-edge technologies such as microwave, plasma, and enzymatic modification. It further explores testing methods and standards, environmental considerations, quality control, and commercialization, demonstrating how modified wood products can contribute to a more resource-efficient and climate-resilient future.